Wang Bin replied: "Mr. William, there are no other products in my store besides this glass. However, the glass from our Tiangong Technology is very good. I think this glass can also replace many materials. If you buy it, it is not difficult to use it to process some very practical items."

"Is that OK? Sir, don't lie to me. Do I know the hardness of ordinary glass, let alone special glass like you. Maybe in your world, you can process this special glass, but for my world, it is definitely very difficult to process such glass." Donald said.

"No! No! No! Mr. Donald, I think you got it wrong. Think about it, how advanced the glass performance of our Tiangong Technology is!

If this glass is equipped on your country's chariot, then I think this chariot is absolutely indestructible.

If this glass is installed on the planes of your country, especially on the planes of your era, then your planes and tanks will not only have strong defense capabilities, but also have no ordinary machine guns and cannons, and their weight will be greatly reduced. In this way, the planes, tanks, etc. of your country can carry more and larger cannons and ammunition. Think about it, what a wonderful thing this is!" Wang Bin said sincerely to Donald.

After Donald said something like Wang Bin, he looked admiring for Wang Bin. After all, he didn't even think about using glass as armor for weapons such as planes and tanks.

But it is normal to think about it. The world where Donald is located was the world during World War II, or the world where World War II had just begun.

With the technological level of their time, it was almost impossible to use glass as armor for tanks and other weapons. Even bulletproof glass was just a conceptual thing.

Therefore, it is not impossible to use this special glass from Wang Bin and Tiangong Technology as armor for equipment.

The most important thing is that for Donald and his country, their country's resources are very limited. At the same time, even if they have resources, producing various products requires workers, equipment and time. However, for them, the most lacking in people and time is now.

So Donald thought about it and felt that it was not impossible to buy this kind of glass as armor for equipment.

So he thought he could try it first, just as Donald wanted to see the technological level of their world, and he could also try it out, how much difference is there with Wang Bin and others.

So he said, "Sir! Your advice is very good! I can buy some in small quantities first and try it out, but I can't determine what model of glass to buy yet.

After all, I don’t know the specific performance of glass yet. I don’t know if the store owner can introduce the performance of this glass and what kind of glass I should buy.

"Okay! Mr. Donald! The maximum high temperature resistance of this glass produced by our Tiangong Technology can reach more than 2100 degrees..." Wang Bin soon introduced the performance of this glass.

Then he said: "So based on the above data, I suggest that Mr. Donald can buy special glass with a value of more than four millimeters, preferably more than five millimeters.

After all, even if it is four millimeters, it can only withstand the shooting of light weapons at most, while it is different for more than five millimeters. 7 millimeters of special glass can withstand the shooting of heavy machine guns at least. If it is more than ten millimeters, it will not be a problem even if it is small-caliber artillery. If you want to resist heavy guns, you can also use multiple pieces of glass and superimpose them."

Of course, Wang Bin was not sure about how many millimeters of this glass would take to withstand 12.7mm machine gun bullets and 100mm heavy cannons at this time, after all, he had never tested it.

However, according to the data of this glass, the impact resistance of a glass with a thickness of 1 millimeter is 45 meters per second, and if two millimeters, its impact resistance will reach 225 meters per second. If three millimeters, it will reach ten times the impact resistance of a millimeter thickness, which means it can withstand impact resistance of 450 meters per second relative to its own weight. Such impact resistance can definitely withstand the shooting of ordinary light weapons.

Donald nodded after hearing what Wang Bin said. According to the data Wang Bin said, this glass can indeed be used as armor for chariots and other equipment. Of course, the specific effect will only be done after buying some back and testing it.

"Shop owner! Although the performance of your glass is indeed excellent, the price is still a bit high. After all, in the entire technology mall, there are not many excellent materials in terms of defense.

On the contrary, in the technology mall, there are still many materials with strong defense, and many of them are cheaper in terms of price," Donald said again.

"Mr. Donald, I don't deny that some materials in the technology mall have better unidirectional performance than our glass, but in terms of comprehensive performance, they are similar to our glass, or more than our glass.

There are absolutely very few zero-level areas in the entire technology mall, only one or two, and their prices are several times more than mine. Even those with one-way performance that are higher than our glass, the prices may not be cheaper than me," said Wang Bin.

Of course, at this time, Wang Bin naturally didn't know the situation in the technology mall. After all, he was unable to leave his store yet, so what he said was basically all guesses based on the information given by the previous system.

Although Wang Bin is not clear about the situation in the technology mall, Donald knows that many special materials in the actual technology mall are very expensive, and some even reach dozens or even hundreds of energy coins.

So in comparison, Wang Bin's glass is not priced at fifteen energy coins, and it is even a bit cheaper.

However, if you can save an energy coin, Donald naturally hopes that the cheaper the agreement. Now that the war in their world has begun, no one can predict how long this war will take. If the war in their world is long, then there will be more places to use energy coins in the future. Even if there are more energy coins, it will be exhausted for a day.

After hearing Wang Bin's words, Donald did not speak, but frowned. It was obvious that he was not satisfied with what Wang Bin said.

Seeing Donald's performance, Wang Bin said again: "Mr. Donald, the performance of our glass is so outstanding, and the price is already very affordable.

If Mr. Donald, if you want, place an order quickly, because our glass production capacity is not much, only a few dozen tons per month. If you don’t place an order now, then if you want it in a while, it may be gone."

"Okay! Sir, you have successfully convinced me that I'm going to buy some and try it out first." Donald said.
Chapter completed!