Chaoshen Technology Trading Mall

As Donald left Wang Bin's shop, Wang Bin also tidied up the shop, and then entered the system again.

This time Wang Bin wants to buy another material technology in the system, but this time what he wants to buy is not those material technologies that exceed the level of his world. After all, he only has about 800 energy coins in his hand now. It is impossible to buy very advanced technology, and can only buy material technology that is at the same level as his world.

Of course, even if it is a material technology that is at the same level as his world's technology, there are still many good things in it.

After all, although many materials have already appeared in Wang Bin's world, even in Wang Bin's world, these materials are all technologies monopolized by foreign manufacturers, and they cannot be produced domestically.

For example, for the really high-performance bearing steel, the domestic bearing manufacturers basically import it from abroad. Besides, there are still many materials that have a certain gap with foreign countries.

However, this technology is sold in the system of the mall, and its price is not high, so Wang Bin is going to buy a material technology to increase the number of their Tiangong technology materials products.

Immediately, Wang Bin opened the purchase option of the technology owned by the system, and then the system listed the technologies that he could purchase now, and asked the system to remove those technologies that were outdated.

Soon, the selected basic material technology catalog appeared in Wang Bin's mind. At the same time, all kinds of materials with similar properties were gathered together. For example, only steel was divided into many types. Carbon steel, what structural steel, what low alloy steel, high alloy steel, structural steel, tool steel, high speed steel, spring steel, bearing steel and so on.

Among these types of steel, there are many sub-categories. This is just steel smelting technology, and in the catalog of the system, besides steel, there are many other metal and non-metal materials.

For example, copper alloy technology, aluminum alloy technology, lead alloy technology, silver alloy technology, etc. in metal technology, while non-metal material technology includes carbon fiber technology, silica gel synthesis technology, silicon wafer manufacturing technology, acrylic manufacturing technology, etc.

At the same time, the prices of these technologies are also high and low, and the lowest price is only a few dozen or hundreds of energy coins. However, Wang Bin doesn't like the technology of these tens or hundreds of energy coins.

Although these technologies are not outdated technologies in the world where Wang Bin lives, Wang Bin can be sure that technologies with such a low price will not be far advanced, and it is even very likely that they will not be advanced in the world where Wang Bin lives. The world has been widely used, and the products it produces are already the price of cabbage.

Wang Bin then asked the system to remove all technologies below 500 energy coins.

But after Wang Bin asked the system to remove all the technologies below 500 energy coins, when he looked at the technology catalog in his mind, he suddenly lost more than half.

So he focused his attention in his mind again, and checked the technical catalog in his mind.

Looking at the dazzling technologies in his mind, Wang Bin really didn't know how to choose for a while, because there were too many material technologies in it.

When Wang Bin saw the manufacturing technology of semiconductor silicon wafers, he was very moved. After all, this is a necessary material for electronic chips. Without semiconductor silicon chips, it is impossible to manufacture electronic chips. However, reason stopped him. Behavior.

He knew that in fact, the manufacture of semiconductor silicon wafers was not a problem for Huaxia at present. The reason why Huaxia could not manufacture high-end chips was not the silicon wafers, but the lithography machine.

However, according to the news some time ago, in the field of lithography machines, Huaxia has now reached the forefront of the world, and has been able to produce a small amount of lithography machines above 10 nanometers.

So be sure, it won't take long,

Huaxia will be able to solve the problem of chips, so Wang Bin no longer pays attention to the technology of semiconductor silicon chips. He browses the technology catalog in his mind again to see what material technology is suitable for him now. .

However, after searching for a long time, Wang Bin did not find any material technology suitable for him. However, Wang Bin was not too impatient, but quit the system first. He wanted to learn more about which technology to choose to buy.

After returning to reality, Wang Bin came to his laboratory, and turned on the computer in his laboratory that was not connected to the Internet, and inserted the USB flash drive he took from Donald into the computer.

Soon Wang Bin was on this USB flash drive, with many videos, photos and text data.

Then Wang Bin took a closer look at the written data. He found that in the USB flash drive that Donald gave him, it was all about the performance of these glasses under various weapons.

At the forefront of these data is naturally the test of the least powerful weapon, the pistol.

According to this test data, as long as the thickness of the glass reaches 3 millimeters, and it can withstand the shooting of a pistol with a caliber below 10 millimeters in his era, and the thickness reaches 4 millimeters, then there is no pistol in his era that can penetrate this glass. .

At the same time, as long as the thickness reaches 4mm, most of the rifles in his era can no longer penetrate this kind of glass.

In addition, as Wang Bin predicted before, as long as the thickness reaches 5 mm, except for professional anti-material blocking, all rifles and light machine guns will no longer be able to penetrate this glass.

Once the thickness reaches 6mm, the glass's defense ability. It has even reached the level where heavy machine guns cannot penetrate.

At the same time, when the thickness of this glass reaches 10 mm, artillery below 30 mm has lost its effect on this glass, and it can also resist mortar fire of about 40 mm.

If the thickness reaches 12 millimeters, which is the limit of the glass thickness that Wang Bin and his Tiangong technology can manufacture, this glass can already defend against a direct hit from a 45mm caliber artillery.

Just after reading the data, Wang Bin secretly nodded his head. Although the data was stronger than what Wang Bin had expected, it was not beyond his expectations.

After all, the world Donald lives in is only equivalent to the technological level of the World War II where Wang Bin lives. In terms of the level of weapons of that era, it is much worse than the world where Wang Bin lives, so the performance of these glasses is much lower than that of Wang Bin. It is expected to be even better, and it is also very natural.

The following data is the actual combat data of this glass installed on some land armored combat units. According to the data, when the armored vehicles are installed, the combat efficiency of this glass produced by Wang Bin and his Tiangong Technology is greatly improved. At the same time, the ratio of casualties has been greatly reduced.

Before installing this glass, in order to ensure the safety of the personnel in the armored vehicle, generally speaking, the field of vision of the vehicle is basically very narrow. Loss.

But using this glass is different. After using this glass, the armored vehicle no longer needs to use thick steel for defense for four weeks. It can be installed on all sides of the armored vehicle like a car. In this way, you can clearly see the situation around 4 weeks, and naturally it is easier to find the sneak attack of the enemy unit.