Finally, Donald spent 15 energy coins to order a ton of special high-temperature resistant glass from Wang Bin, ranging from 0.5mm to 12mm. Compared with that, he bought more than 5mm. At the same time, according to the agreement between them, Wang Bin must complete the order transaction within three days.

    When Donald walked out of Wang Bin''s shop, Wang Bin was also ready to launch the technology mall. After all, now their Tiangong technology has only such a small production capacity, and they also supply 969 group and Qin''s industry. Therefore, even if they keep some every day, it will be more than a ton at most.

    Moreover, now their factory has just started, the workers are not complete, and the production capacity is poor. Therefore, even if they sell some special glass in the technology mall, Wang Bin has nothing to sell now.

    However, just as Wang Bin was about to quit the science and technology mall, he suddenly thought that when he was a novice, the system rewarded Wang Bin''s special glass technology. Does that mean that he can also buy the technology in kanxing and red police from the system.

    So he immediately asked the system, "system! Can I still buy technology in the world of kanxing and red police? Do I need to buy it with science and technology stores in the world of kanxing, red police and Empire, or directly from the system?"

    "Dear hosts, because kanxing, red police and Empire are small universes, there is no host of science and technology mall in these worlds, and there are no stores in these worlds in the natural science and technology mall, but some people in their world can come to the science and technology mall.

    Just like the two customers who came to your store to buy things before, and the technologies of these two worlds have basically been sold by these people to the officials of the science and technology mall, especially the materials technology. Therefore, if the host wants to continue to buy the technologies of these worlds, it can buy them directly from the system, "said the system.

    After listening to the words of the system, Wang Bin was finally relieved. After all, with the current scientific and technological level of human civilization and the situation of their Tiangong technology, the technology of these three worlds is the most appropriate. Therefore, he was worried that after the task is completed, he could not buy technology from kanxing, red police and Empire.

    Then Wang Bin said to the system, "can I have a look at the technology and price of other basic materials of kanxing?"

    Although Wang Bin has previously obtained special high temperature resistance technology from the system, Wang Bin did not spend any energy coins on this technology, but the novice reward of the system.

    "Yes!" as the words of the system just fell, Wang Bin saw the technology and price he wanted to see in his mind!

    "Kanxing Aerospace primary re-entry module shell material technology!

    Maximum high temperature resistance: 2400 degrees.

    Maximum impact resistance: 50 meters per second per square millimeter.

    Maximum overload resistance: 50g.

    Maximum compressive strength: 14000 kPa.

    Mohs hardness

    ....

    ....

    Purchase price: 15000 yuan.

    Kanxing primary aircraft skin material technology..... 16000 energy coins.

    Kanxing bearing steel smelting technology:... 110000 energy coins.

    Canxing tire technology..... 18000 energy coins.

    ....

    Wang Bin looked at kanxing''s material technology for a while. He found that the cheapest of kanxing''s material technology is 16000 energy coins, that is, the skin technology of the return module, and it is also the most primary skin technology of the return module.

    The price of advanced materials and technologies in kanxing is even higher, which is not what Wang Bin can afford now. In addition, the materials and technologies in the red police and the Empire are much cheaper. However, at present, if the earth does not have or the performance does not reach the level of these materials, the price is basically more than 12000 energy coins, while those outdated technologies are much better, basically only Hundreds of energy coins, and even several energy coins.

    Of course, for the current earth, Wang Bin still doesn''t see the outdated or owned technology.

    After watching for a while, Wang Bin quit the system. After all, he doesn''t have an energy coin on him now.

    Of course, for him, the most important thing now is to thoroughly understand the special glass technology, make it bigger and stronger, and develop their Tiangong technology first.

    Subsequently, Wang Bin withdrew from the technology mall and returned to reality.

    When he returned to reality, he found that only one minute had passed. You know, he stayed in the technology Mall for more than an hour!

    In other words, an hour in the mall is equivalent to a minute in reality, which makes Wang Bin a little happy. After all, if the reality is synchronized with the time in the technology mall, he has no time to guard the store in the mall.

    ....

    Wang Bin''s office. When he went to work at 9 o''clock the next morning, Wang Bin was already in the office. Wang Bin''s office was not big. Many things inside looked old-fashioned for some years. It can be said that some were not up to this era.

    In the office, Wang Bin stood at the window and looked out at the factory. At this time, when they were working at Tiangong technology, he could clearly see that many of their factory workers were entering the factory from the outside and then clocking in to enter the workshop.

    After watching for a while, Wang Bin turned around and sat in front of his office. He inquired about the equipment for processing ball screw on the computer.

    In the process of inquiry, Wang Bin found that the ball screw is also divided into different grades according to different precision, and there are differences between domestic and foreign.

    The grade accuracy in China is divided into seven grades: P1, P2, P3, P4, P5, P7 and P10. Among them, the precision of grade P1 is the highest. The stroke variation within any 300mm stroke is 4 microns, grade 6 microns, grade 3 is 9 microns and grade 5 is 23 microns.

    Of course, Wang Bin can''t afford P1 and P2 grade screw rod production lines at all. After all, P1 and P2 grade screw rod production equipment is often started by at least tens of millions. At the same time, after processing, a series of follow-up processing must be carried out. In order to ensure accuracy, general processing equipment can''t do at all. It must be international top-level equipment, The price of these equipment is also very expensive. Even if you have money, you may not be able to buy them.

    Of course, the most important thing is that Wang Bin''s Tiangong technology does not use ordinary screw materials or metal materials to process ball screw, so even if Wang Bin can buy these processing equipment, he can''t use it. Therefore, Wang Bin is going to buy a set of high-precision CNC machine tools that can be bought in China, and then process some to see the effect.

    After reading it on the Internet for a while, Wang Bin found that the best high-precision machine is produced abroad.

    In China, although high-precision machines can be manufactured due to technological breakthroughs in recent years, and some can even be compared with foreign advanced high-precision machines, there is still a gap with the top foreign high-precision machines.

    Seeing this, Wang Bin''s heart is still a little depressed. Xu Zhenming''s world, that is, in the early 1990s, China has begun to catch up with foreign technology. However, thirty years have passed, but there is still a certain gap in this aspect in China. You should know that ultra-high precision machine tools and materials are the mother of industry! It can definitely represent the industrial level of a country!

    However, although he was depressed, he was not angry, because with his access to the technology mall system, this situation will certainly change. In the future, Tiangong technology can definitely produce the world''s top machine tools. Of course, what Wang Bin has to do now is to develop Tiangong technology and improve the level of the technology mall, In this way, he can buy more advanced technology and more advanced products.