Era: Starting from divorce from female college student

Chapter 277,
January 23, 1965, the 21st day of the twelfth lunar month, was less than ten days away from the Spring Festival.

Zhao Mancang finally returned to the capital. He had been away since November and it was now January. This time, after more than three months away, he finally returned.

In the Guozi Lane office, Zhao Mancang sat in a room as warm as spring, drinking and chatting with Wei Huayong.

There is a big boiler outside the office, and it is because of this big boiler that the office is so warm.

The climate in the north is different from that in the south. It is much colder. You have to burn the boiler to survive the winter, otherwise people really can't stand it.

In the south, the temperature is above zero degrees Celsius in winter and rarely drops below zero, especially in Hong Kong Island. Only in extreme winter weather can the temperature drop sharply to 7 or 8 degrees Celsius, which is already the lowest temperature.

Therefore, most of the time, the only way to endure the cold in the south is to shiver.

"It's cold here, but at least we have a big boiler indoors, so it's not that cold. But you don't know, Old Wei, it's really cold in the south. I just passed by there and it was freezing cold."

Zhao Mancang, who was wearing a short-sleeved shirt, complained about the weather in Hong Kong Island, and Wei Huayong next to him burst into laughter.

The two chatted for a while, and then Zhao Mancang asked about the current situation of the Jiaolong Comprehensive Organization.

"Mancang, you've been away for so long, and there's a lot of inventory piled up at the Tamron factory, just waiting to be sold."

"Then sell it. Can't you sell it without me? Didn't I tell you before? If you can't wait, then sell it in advance."

"After all, you are the leader of the entire organization. If you are not here, they will not dare to ship the goods directly."

After hearing what Wei Huayong said, Zhao Mancang was speechless. It turned out that they were afraid of taking responsibility. They were really a group of cowardly people.

"Okay, I'll go over there tomorrow and take a look. If there are no problems, I'll start selling the goods."

It is impossible for there to be a problem, because before Zhao Mancang left, or more precisely, when the Tamron factory was established, he had them set up an extremely strict quality and safety inspection process on the production line. If all parts do not meet the standards, it is impossible to enter the next process.

Although this will increase worker expenses, it is definitely a step that cannot be skipped.

Because most of these products are exported to earn foreign exchange, if problems arise, the problems will be much more serious.

When he stood up and walked out of the office, heavy snow was already falling in the yard outside, and his jeep was also covered with snowflakes, with a lot of snow still accumulated on the roof.

Even with his military coat on, Zhao Mancang still felt a little cold, because today's temperature was at least minus twenty degrees Celsius, which was really unbearable.

He started the car and quickly returned to Zhongguancun South Street.

When he got home, Zhao Huijun and the other children were stunned at first, and then they started chattering around him.

After spending a night at home, Zhao Mancang, who had delivered enough food to Lin Wan, happily drove the car to send her to her workplace before returning to Guozi Lane early the next morning.

After returning to Guozi Lane, he needed to talk to Wei Changyuan, Gan Guangde, Hu Baoshan and others about the current research and development progress of the project. He learned that it had been completed, and the remaining assembly work would have to wait.

After confirming this, Zhao Mancang nodded immediately. He planned to go to the northwest in the afternoon and bring the remaining parts back to Beijing.

"In that case, the project will be temporarily concluded. We'll produce a few more products for testing, and that's all for this year. Have a happy new year, everyone. We'll continue developing other projects after the spring of next year."

"Professor Gan, Professor Hu, we'll need you to fully participate in the subsequent assembly work. The drone project has been going on for such a long time, it's time to give an explanation to the higher-ups."

After hearing what Zhao Mancang said, Gan Guangde and the others nodded seriously, while the other researchers who had been cheering just now were a little unhappy at this time because they also wanted to participate.

One researcher raised his hand, followed by a second, and then more researchers, all hoping to join in and participate in the subsequent drone assembly and testing work.

"No, you've worked so hard for so long, you should rest well. Besides, the scientific research tasks in the near future will be even more important, so don't slack off."

Zhao Mancang refused and did not let them participate because the organization and testing of drones would not require so many people.

After making the arrangements, Zhao Mancang left the Longxing Research Institute and went straight to the Tenglong Factory in the suburbs.

The warehouse of Tenglong factory is piling up more and more goods, and Xu Wenrong, the person in charge, is under great pressure.

"Director Xu, we've added another 200 air conditioners and 150 televisions to our warehouse. It's almost full. If this continues, we don't know what to do. Besides, it's so cold right now. What if they freeze?"

"Nonsense, how could these TVs possibly freeze?"

Xu Wenrong cursed angrily, and the warehouse manager smiled awkwardly, but he was under a lot of pressure. There were so many things piled up in the warehouse. If anything broke, he would be responsible.

But how could he possibly bear the burden with his small arms and legs?
Fortunately, at this time, Zhao Mancang appeared, and a worker came to inform Xu Wenrong that the leader had arrived.

So Xu Wenrong hurried out, and then saw Zhao Mancang had already arrived at the warehouse and started checking.

Zhao Mancang conducted random inspections, but he checked every device that was selected for inspection very carefully and seriously, simply because these devices would be sold to Sam's Club, so naturally he could not afford to be careless.

A large group of people including Xu Wenrong soon appeared behind him. They were very nervous, fearing that Zhao Mancang would really find an unqualified product.

Soon, the inspection was completed. Zhao Mancang did not find any equipment that did not meet the standards. Xu Wenrong and others breathed a sigh of relief.

"Okay, these devices are all qualified, but don't be too happy too soon. After the goods are traded, the other party will conduct a final inspection. If there are any problems, hehe..."

After hearing what Zhao Mancang said, Xu Wenrong and others repeatedly assured him that there was no problem.

"It's best this way. The Tenglong Factory is different from other units. All of our products are closely related to our Jiaolong Army. Whether they are exported to earn foreign exchange or given to our own people for use, any unqualified products cannot be placed in the warehouse."

He was right. Take bulletproof vests as an example. If there were any quality problems with the bulletproof vests worn by the Jiaolong Army, Lu Yaowei, Tie Wanzhong, and Yang Chunjiang would definitely not hide it. When Zhao Mancang found out about this, he would definitely get to the bottom of it.

Each process is performed by a specific worker, and the specific production date and time are all recorded in detail. These records are strictly kept and cannot be lost.

Therefore, any quality issues or other problems are not allowed to occur. Once they really occur, Xu Wenrong and others can only wish them well.

After confirming that the goods could be shipped, Xu Wenrong and the others all breathed a sigh of relief, especially the warehouse manager, who was the most upset.

"Notify the transportation department and ask them to deliver a batch of goods to Futian Airport as quickly as possible."

Zhao Mancang sat in the office giving orders, while Xu Wenrong nodded hurriedly. These arrangements had been made in November last year before Zhao Mancang left the capital.

Air conditioners and other home appliances will be transported from Beijing to Futian Airport, and then transported to Kwai Chung Pier in Hong Kong Island via the airport terminal.

After arriving at Kwai Chung Port, the subsequent transportation task was handed over to Nolinasun Ocean Shipping Company.

This batch of goods will not enter Sam's Club directly, but will be transported to Australia. After all products are subjected to a final detailed inspection and confirmed to be in good condition, they will be assembled, packaged and shipped to Sam's Club.

In other words, after a round trip in Australia, it becomes Australia's export product.

All of these equipment were shipped to Tuao in the form of spare parts, and Tuao was just a processing plant.

Of course, the first time is the export product from Australia, but the follow-up may not be certain, because Zhao Mancang will also set up a processing factory in Europe.

Even if this means an extra procedure, there is nothing that can be done about it.

The goods of Nolinasun Ocean Shipping Company come from all over the world. Whether it is Sam Customs or Sam Intelligence Agency, when they want to track them down, they will face a large amount of investigation work like the ocean. It is absolutely difficult for them to find out where those goods come from.

Even if the investigation finds that it really comes from Australia or Europe, so what?
Anyway, the source is not from the University of Tokyo, so that’s fine.

With so many methods combined, even the most powerful agent would probably feel his scalp tingling when faced with such a situation.

After all, this era is not like the later generations. Transportation is not very developed now. Road traffic in many places is hard to describe, not to mention communication tools.

There is also the issue of public security in some places.

In short, Zhao Mancang would prepare many disguises from the very beginning, making it difficult for people to find the real source of production.

A TV that costs less than 200 RMB will cost at most 20 RMB more after going through Australia, and when it arrives at Sam's Club, the selling price reaches 280 US dollars.

According to the current exchange rate between the US dollar and the RMB, one US dollar can be exchanged for 2.46 RMB, so two hundred and eighty US dollars is six hundred and eighty-eight RMB.

In other words, the profit from the TV is at least four hundred yuan.

Huge profits!
The most important thing is that the price of two hundred and eighty US dollars is already a super low price for Sam's Club. Do other competitors dare to sell at such a price?

Absolutely not!

The cost of a color TV is much higher, but it does not cost 500 yuan, and as workers become more skilled, the cost can be controlled below 400 yuan, which is no problem at all.

However, the price of a color TV at Sam's Club would definitely be more than $600.

Even if it is sold at $799 at that time, you can still make a lot of money.

Zhao Mancang can certainly make a lot of profit, but he will still give most of the profit to Jiaolong Comprehensive Agency. After all, he has more opportunities to make money overseas and does not need so much money.

"Okay, no problem, leader, we'll arrange it right away."

Xu Wenrong agreed, and Zhao Mancang stopped caring about the subsequent matters. He then asked about the research work on lithography machines and chip production.

As the person in charge of the vacuum dust-free workshop, Jiao Mingwu quickly stood up to report the relevant matters.

However, Zhao Mancang did not want to hear this. What he hoped more was that professors from the Chinese Academy of Sciences such as Mo Gensheng, Tao Fangqi, and Kang Jichang could develop the lithography machine smoothly and help him train qualified researchers.

However, it is still very difficult to become fully familiar with this projection lithography machine in a short period of time, because Mo Gensheng and his colleagues have never come into contact with such high-end equipment before.

Projection lithography machines are currently the most advanced high-end equipment in the world. Currently, only Sam's Fairchild Semiconductor can produce them, and no other company can do so.

Fairchild Semiconductor is the world's first company capable of producing projection lithography machines. It started production in January last year. At that time, in accordance with Zhao Mancang's requirements, it directly established 20 production lines and ran at full capacity.

Hundreds of lithography machines have been produced so far, and all of them have been sold or pre-ordered. There are still many units waiting in line. Sam alone cannot fulfill the orders from many military units, computer companies, universities, research institutes, etc., let alone exporting to countries other than Sam.

But there are still companies willing to take risks and place orders with Fairchild Semiconductor. After receiving the goods, they secretly smuggle them out to Moscow or other countries in Europe to earn a high price difference.

Anyway, countries like Moscow are willing to pay a high price.

Of course, Fairchild Semiconductor’s price for each lithography machine was not low, so it made a lot of profit.

"Director Zhao, we don't have a comprehensive understanding of lithography machines yet, so we can't give you an accurate answer. Especially for the core components like lenses, we are not yet able to understand and produce them. But please believe us, we will definitely complete it as soon as possible."

Hearing Kang Jichang's words, Zhao Mancang nodded and said:

"I believe you, but I also need to remind you that Fairchild Semiconductor, Sam's company, has already sold hundreds of lithography machines. They produced hundreds of these machines in just one year. This shows how advanced their manufacturing technology is."

"Can you feel how big the gap is between us and Sam now?"

"I hope you can race against time and complete the relevant tasks as quickly as possible while ensuring your own health. I need to hear news as soon as possible that our Tamron factory can produce lithography machines."

"Once our Tamron factory is able to produce lithography machines, it will also mean that we have more advanced technicians. At that time, we will be able to enter the lithography machine market with our cost advantage."

"As long as we can enter this market, we will be able to earn enough foreign exchange. You must understand that the profits in high-tech industries are very high, and the added value of its products is also what we have always pursued."

Zhao Mancang's words made everyone in the office hold their breath and listen very carefully.

However, everyone was full of fighting spirit. Even though Fairchild Semiconductor already had such a leading advantage, their Tamron factory would never give up.

Because they have leaders like Zhao Mancang, they believe the future is bright.

After the meeting, Zhao Mancang returned to Zhongguancun South Street and had lunch with the children. In the afternoon, he went straight to the Shaya Laboratory in Northwest China.

After arriving at the Shaya Laboratory, Zhao Mancang met Xu Qinggong and others. They were very excited because they had finally completed the mission and would soon be able to see the drone.

Lithium batteries are a perfect energy device, especially when installed on drones.

The three-kilogram lithium battery device is the limit of what Xu Qinggong and his team can achieve. Zhao Mancang asked about several key technical points, including safety performance, endurance, ultra-low temperature testing, etc. Only by passing all these tests can it be called a qualified product.

The most difficult test for batteries is actually the testing under extremely cold weather in the north, because the battery will operate slower in such an environment.

In extremely cold weather, the reasons why batteries have difficulty operating mainly include electrolyte solidification, slowed chemical reactions, increased battery internal resistance and increased automatic discharge rate.

The electrolyte in lithium batteries will become viscous or even solidify in a low-temperature environment, which will prevent lithium ions from moving freely, thereby affecting the battery's full charging and discharging process.

Therefore, in order to cope with the impact of low temperature environment on battery performance, additives, low-temperature electrolytes, etc. can only be used to solve these problems.

Zhao Mancang does have some solutions, but these can only guarantee this at temperatures of minus 30 degrees Celsius. For even colder low-temperature environments, other battery structures will need to be considered.

For example, nanobattery technology, graphene battery, aluminum-air battery technology, etc., these are the real future battery technologies.

"Here are the other parts of the drone. You can assemble them and test them yourself. I believe you have already read the relevant technical information. If they pass the test, then you can arrange the production tasks yourself."

After a pause, Zhao Mancang continued:

"This Spring Festival, I will give you a more abundant festival. There will be fireworks shows, movies and so on. There will be no TV programs, but I believe things will get better and better in the future."

Movies can be played directly without any hassle. On the other hand, TV programs require wires. Nowadays, we have cable TV instead of satellite TV, but if we want to watch TV, we have to run a wire from outside. This is not possible. In the Shaya area, communication with the outside world is absolutely impossible.

Every time Zuo Changsheng and his transport team came here to carry out transport missions, they did not communicate with the people in the Shaya area, and even face-to-face communication was rare.

It is even more impossible to meet with researchers like Xu Qinggong or those junior and senior high school students.

Only in this way can we minimize contact and reduce the risk of leakage.

Zhao Mancang and the others had no choice but to be cautious, as this was a rule that must be followed.

After putting down the other parts of the drone, Zhao Mancang left again.

He did not go to see the solar power plant and other units, but just had a brief understanding of them in the conference room.

Time is tight and the task is heavy, so Zhao Mancang has to return to the capital and hand the things over to Gan Guangde and others.

In Beijing, it was already past eight o'clock in the evening. Gan Guangde and his men were still waiting in the office, looking impatient, which made Zhao Mancang, who had hurried back, stunned for a moment.

"Professor Gan, why are you still here? It's so late, go get some rest. The drone assembly work won't cost you any more time."

"No, this is the result of several years of research at our institute. We don't want to wait even for a second, let alone a whole night."

Wei Changyuan, Gan Guangde, Hu Baoshan and others shook their heads. Some of them even did not say anything and walked directly to the big truck behind the jeep, where they wanted something.

A lot of equipment has been taken down and now the various assembly works have begun.

In the huge laboratory, parts were disassembled one by one and slowly assembled with other parts in the hands of Gan Guangde and his team. The prototype of the drone began to slowly emerge.

Before Zhao Mancang arrived, they had already assembled a part of it. Currently, they only lack a few key components such as lithium batteries. Related components such as rotors and flight control have already been manufactured and installed.

The communication and signal equipment has also been installed, followed by batteries, remote controls, display cables, etc.

In less than an hour, a seemingly unidentified drone appeared. The general shape of this drone was not much different from the drones used for civilian spraying of agricultural products in later generations.

However, there will be a huge difference in the choice of materials. The materials used are all aviation-grade aluminum, which is lighter but harder, which greatly reduces the overall weight of the drone, while its corrosion resistance, bearing capacity, hardness, rigidity and other properties are stronger.

This aviation aluminum material was developed by the Materials Laboratory of Longxing Research Institute, mainly referring to the technical information provided by Zhao Mancang, and everything was done for the UAV project.

As for the lithium battery, it is only three kilograms, which is not very heavy, but it is still a bit too heavy compared to the weight of the drone itself.

The remote control does not have much technical content and is no different from those in later generations, but the display is different. It directly uses a color TV, which is produced by the Tamron factory.

This thing will be the biggest obstacle to the use of drones.

Therefore, whether it is the Longxing Research Institute or the Shaya Laboratory, the subsequent scientific research focus is on displays, and smaller and more detailed display screens must be achieved.

The technology that Zhao Mancang wanted most was plasma display. Perhaps in the eyes of later generations, plasma display technology was too expensive, so it was eliminated by the market.

But in this era, plasma displays are the king.

Cost is not a problem at all; on the contrary, to a certain extent, it is an advantage.

Just because of the huge cost, it will be difficult for it to be popularized in the civilian field. After all, for ordinary consumers, the best products are good quality and low price.

Of course, plasma displays also have the disadvantages of high energy consumption and short lifespan. After they are taken out, they can be sold to Sam's Club at a high price, which is definitely a scam.

The reason why Zhao Mancang wanted plasma display technology was because Sam had already started research and development, and related technologies had already appeared.

Last year, in 1964, someone at Illinois State University had proposed the concept of plasma display and had begun research and development of simple luminous dot matrix and other technologies.

However, due to limitations in materials and processes, the size and display quality of plasma displays will definitely be poor. In other words, this is Todai's opportunity.

But it’s too early to cheat people now, so there’s no need to rush. Let’s finish the drone testing first.

"It's assembled, so let's start testing now. Leave it to me."

Zhao Mancang did not go home, but stayed to accompany Gan Guangde and the others. Even Wei Huayong, Gu Haidong and others were watching from the side.

Seeing that Zhao Mancang took away the remote control, everyone had no choice but to stare at the drone while staring at the monitor.

There is also a camera installed on the drone. This camera is not light, weighing more than two kilograms, but it is already the most advanced camera that Zhao Mancang can get.

If it is the camera used by today's reporters, there is even less solution, because this type of camera must be wired.

Anything with wires will naturally conflict with drones.

The camera on the drone will be equipped with a data signal transmitter to transmit the images recorded by the lens to the display in real time through the transmitter.

Just this technology has troubled Wei Changyuan and others for a long time.

The drone is composed of lenses, signal transmitters, lithium batteries, flight control devices, drone frames, rotors, lines, etc., as well as the remote control in Zhao Mancang's hand and the display in front of him.

Zhao Mancang started the drone through the remote control and controlled it to take off. Under everyone's expectant and nervous gaze, it began to slowly rise into the air. At this time, the picture also came from the monitor.

“Success, success, haha!”

Everyone burst into cheers. Zhao Mancang smiled and did not interrupt their celebration because the next part was the highlight.

Although the drone cannot fly very high, Zhao Mancang still wants to give it a try. In addition to testing the drone's ability to fly at high altitudes, he also wants to test the lithium battery's ability to withstand low temperatures.

At this time, the outdoor temperature in Beijing is about minus 21.5 degrees Celsius. The temperature at high altitudes is different. For every 100 meters increase in altitude, the temperature will drop by 0.6 degrees Celsius.

The important components of drones are all made of aviation-grade materials, so they don’t have to worry too much about ultra-low temperatures or extreme snowfall weather, but this is only relatively speaking.

The low temperature resistance of lithium batteries is only minus 30 degrees Celsius. Once this limit is exceeded, the drone is likely to become stagnant.

After the drone rose to a height of 200 meters, the image seen on the monitor was already quite blurry. Because of the relationship between the monitor's clarity and the camera's, it was definitely impossible to transmit ultra-clear image quality, so blurriness was normal.

Soon, at an altitude of 500 meters, the temperature outside the drone had dropped by three degrees, which was very different from the ground temperature.

But at this altitude, the sound of the drone can no longer be heard on the ground, so this is an advantage.

Although such a drone is still very noisy and cannot be compared with the insect drone that Zhao Mancang exchanged from the system mall, it is already a very awesome technology.

The camera was rotating in real time, viewing the night view of the entire capital city, but except for some streets with lights, there were no lights in many places.

Eight hundred meters, one thousand meters, it continued to rise and move upwards. Zhao Mancang controlled the drone. Although he could not see the current status of the drone, he could still see from the display that the drone was not affected.

Well, lithium batteries can still operate well at an altitude of minus 27 or 28 degrees Celsius.

At this point, the testing is basically complete. The next step is to test other aspects such as battery life, but this part of the work will be carried out tomorrow because it is already very late.

After the drone landed, Zhao Mancang checked it and found that the rotors, frames and other places were still covered with snowflakes and ice. There was nothing that could be done about it.

But we still need to pay attention to this point, otherwise, when the drone is really used in such an extreme environment, accidents may occur.

"Record it. Also, there are still too few cameras. With only one camera, it's not very user-friendly for the drone. Therefore, the drone's carrying capacity needs to be improved. We'll test the range tomorrow. That's all for tonight. Everyone go back to sleep."

No one dared to disobey Zhao Mancang's order. Even Gu Haidong didn't say anything. He left after confirming the situation.

However, Gu Haidong did not rush home to rest. Instead, he went to Lingjing Hutong with Zhao Mancang to report on his work.

In the office of Lingjing Hutong, the leaders listened carefully to Zhao Mancang's work report, their expressions sometimes happy and sometimes frowning.

Drones are already very good technological products. They can carry bombs for airdrops and can also be used as reconnaissance aircraft. In short, they are definitely very advanced technology.

But in Zhao Mancang's words, this drone is simply useless. Not only is the lithium battery's low-temperature resistance poor, the battery life and carrying capacity are not good, but there are also few cameras, the display is bulky, etc., and there are shortcomings in every aspect.

"The current drones can only barely perform reconnaissance missions for the Jiaolong Army, and they also increase logistical pressure because the monitors and other equipment are too bulky, making it difficult for them to carry out mobile operations."

"So the next focus of our Longxing Research Institute is to tackle three areas. First, lithium battery technology needs to be further improved to increase the range of drones. Secondly, the camera must be lightweight while also making the image clearer and simpler."

"Finally, there's the display. In my opinion, a palm-sized, thin and lightweight display would be most suitable. Sam has proposed a concept called plasma display, and they should be conducting research and development, but I don't know when we can see such a display."

Listening to Zhao Mancang's work report, the leaders were shocked and helpless. Zhao Mancang was good in every way except that he was a little radical, as if he was chasing something.

The teacher said that ten thousand years is too long, so seize the day.

And it seems that Zhao Mancang did just that. After he became a top surgeon and was buried in the snow in Moscow, his temperament had changed drastically when he came back.

He is obviously just a doctor and a soldier, but up to now, the Longxing Research Institute he leads has been able to develop such drone technology, which is truly impressive.

But even so, he has never been satisfied and is still pursuing the limit.

The next day, the drone testing continued. This time, everyone's testing focus was different, especially the testing in a combat environment, where the emphasis was even more different.

The three-kilogram lithium battery did not provide the expected three hours of flight time due to the drone's heavy weight.

Therefore, the technical research and development direction mentioned by Zhao Mancang is not unreasonable. After all, the only part of the drone that can reduce its weight is the camera, and other aspects cannot be reduced any further.

For example, the frame of the drone is not made of stainless steel, but carbon fiber.

Carbon fiber related technologies have been developed at the Longxing Research Institute for many years. The carbon fiber currently produced does not perform the best in terms of strength, but it is indeed sufficient for use in drones.

Because carbon fiber is lighter and has excellent strength, load-bearing capacity, corrosion resistance and rigidity, especially the conductivity of carbon fiber itself is very poor, it can effectively avoid interference with onboard electronic equipment.

Of course, in today's war environment, such interference with airborne electronic equipment rarely occurs, so there is no need to worry too much about this.

Time flies. After completing various tests, all the test data were sorted out. Zhao Mancang brought Gan Guangde, Wei Changyuan, Hu Baoshan and others together to hold a meeting.

"After all the testing, congratulations to everyone! The drones you've developed are fantastic. Everyone has done a fantastic job on flight control technology, remote control communication signals, and so on."

"Of course, the flaws are also very obvious, as everyone saw during the testing process. I won't go into the specific data, but let me talk about the next research focus."

"The Longxing Research Institute's core research areas for the future will be camera and display technology. We don't need to pursue such high-precision technology in other areas, but cameras and displays are crucial to the troops' actual combat needs."

"The relevant researchers from Shaya Laboratory are not in the conference room, so I will not explain their specific research directions here."

"The Spring Festival is just two days away. Everyone has worked so hard for so long, so let's give everyone a long holiday this year. Let's celebrate the New Year happily and don't worry about anything else."

Zhao Mancang's words were like throwing a spoonful of water into a frying pan. The entire conference room instantly boiled over and everyone was very happy.

No matter what defects the drone has, it has finally been developed, and judging from its current performance, it is simply awesome.

There is no need to worry about orders for such a good product. As soon as Zhao Mancang walked out of the meeting room, someone came to inform him to go back next door quickly because Lao Wei was already greeting guests.

When Zhao Mancang walked into the office, everyone in the room looked at him.

These people were all wearing military uniforms. When they saw Zhao Mancang appear, they became more enthusiastic and approachable, and pulled him to get close to them.

Everyone knows that each drone has its own excellent performance, so now we hope that Zhao Mancang will give us convenience and produce a batch of qualified drones as soon as possible and deliver them to the troops for use.

"Leaders, I don't think it's possible yet. Spring Festival is coming soon and the workers are all on vacation. We can't call them back to work overtime. We can wait until after the Spring Festival. Also, we just finished the testing work and the production line hasn't been set up yet, so we can't rush."

Zhao Mancang comforted everyone. Although everyone expressed their understanding, they still couldn't help but urge him again and again.

More than an hour later, after Zhao Mancang's repeated assurances, the group of leaders in military uniforms left reluctantly.

After seeing off the guests, Zhao Mancang said to Wei Huayong, "Old Wei, from now on, I'll let you handle these welcoming and seeing-off duties. I'm really not suitable for this. It's too easy to offend people."

Upon hearing this, the latter rolled his eyes and said, "So I come here so as not to offend anyone, right?"

Lao Wei was not angry. After all, he had already retired and it didn't matter if he offended anyone. Besides, when he was rehired, his main job was to do the same kind of work.

But this time the drone is different, and no matter what Wei Huayong says, it’s useless. After all, Zhao Mancang’s words are the key.

In the next few days, Zhao Mancang really gave himself a vacation and stayed at home, or took his children to Xidan or Wangfujing for shopping on the 28th day of the lunar year.

With the arrival of the Spring Festival, the festive atmosphere on the streets became stronger and stronger. Zhao Huijun and several other children had already bought a lot of firecrackers, sky rockets and the like, and they would set one off from time to time near their home, and then the children would burst into cheers again.

For little kids, there is nothing more joyful than this. If there is, it must be delicious food!
There are a lot of delicious food at home because their father has come back. There are always delicious foods every now and then, such as cakes, rice cakes, cow ears, etc., as well as various fruits.

For example, today, Zhao Mancang brought back a lot of persimmons from outside. These soft persimmons are bright red and have plump flesh, which looks very tempting.

"You can't eat too many persimmons, and you can't mix them with other foods. Anyway, you can't eat them now. Wait until mid-morning and you can eat them."

"Dad, why?"

(End of this chapter)