Chaoshen Technology Trading Mall

Regarding Donald's praise, Wang Bin didn't feel any burden, but nodded with a smile. Yes, these screws made of special glass are indeed as beautiful as works of art.

"How about? Mr. Donald, how do you feel about these screws? Do you need to buy some?

I think you already know the performance of this kind of glass produced by our Tiangong Technology very well, so using this kind of glass as the material of the screw rod, I think I won't say much in terms of quality, let's talk about these The precision of the screw!

Let's take a look at this highest precision ball screw first, this is the second-level precision screw in my world!Its precision reaches every three hundred millimeters in length, and the error does not exceed 4 microns!By the way, I think you must know the concept of micron, so I won't say more.

And even if the screw rod with such precision is placed in our world, it is not manufactured by any company or country. I will not say the importance of such a precision screw for machine tools and other equipment, I think you are sure I know..." Then Wang Bin turned on the flicker mode and introduced this screw with a fragrant mouth.

"Mr. Donald, this kind of screw only sells ten pieces of 1 energy coin, it is definitely worth the money, Mr. Donald, don't you think about it!" Finally, in Donald's dull expression, Wang Bin finished introducing this silk Rod.

However, Donald was obviously not fooled by Wang Bin, but he lowered his head and remembered. Although the precision of this screw is absolutely very high for the world he lives in, even his country is already known as The world's top industrial power, but they can't process screw rods like this.

But is such a precision screw really useful for his world?This made him a little skeptical. After all, such accuracy has exceeded the limit of his world. If there is no matching machine tool, then the performance of these screws will not be able to play.

Seeing Donald’s hesitation, Wang Bin introduced to Donald: “Since Mr. Donald is not satisfied with this screw, let’s take a look at the other one, which is the one in my hand. The world's top class screw is a three-level precision screw with a precision of eight microns. I don't know how Mr. Donald feels!" Wang Bin picked up a three-level precision screw and said to Donald.

But after listening to Wang Bin's words, Donald still didn't speak, so Wang Bin picked up a fourth-level precision screw and said to him: "Mr. Donald, since you are not satisfied with this, then look at this again. It is a four-level precision screw with a precision of 12 microns, which is 0.012 mm."

Then, before he could speak, he picked up a five-level screw and continued: "This is a five-level screw with a precision of 23 microns, which is 0.023 mm." Soon Wang Bin became Donald. The introduction of these screws is finished.

As for the lower-precision screw, Wang Bin did not manufacture it, so naturally there is no one in the mall, because Wang Bin does not think that it makes sense to sell the lower-precision screw in the mall.

After all, as long as the visibility of civilization reaches the late stage of zero-level civilization, it shouldn't be a problem to manufacture a screw with such precision.

After listening to Wang Bin’s introduction, Donald did not speak for the first time, but after quietly considering for a while, he said to Wang Bin: “The shopkeeper, first give me ten second-level precision One hundred and three-level precision screws, I will take them back for a try, and if I can, I will place more orders."

"Okay! Yes, Wang Bin said." Soon Wang Bin picked up ten second-level precision and 100 third-level precision screws and handed them to Donald, and said to him: "Mr. Donald, I hope these wires You can be satisfied with the screw rods. Of course, if you can, next time you come to our Tiangong Technology store, you can bring the usage data of these screw rods."

"Okay!" Donald said.

After speaking, Donald left Wang Bin's shop and returned to his own world.

However, what Wang Bin didn't know was that it was precisely because of the ton of glass he sold to Donald before, that Donald and their restless world had become more turbulent.

.......

Donald William is in the world, which is a Normandy Landing World 4D nation.

In a huge underground base, Donald's room, an empty room, suddenly Donald's figure appeared in the room.

Back in his own world, Donald’s reaction was the same as that of most people. He looked at his room for a while and found that no one appeared in his room, and nothing had been moved. At the same time, there was nothing on the door. There was a change, and he was relieved, which showed that no one had been to his room when he went to the Science and Technology Mall to buy supplies.

So he sorted out his clothes first, opened the door of his room and walked out.

This base is the same as before. The entire base is full of soldiers patrolling, especially near his room and near the warehouse and manufacturing workshop.

Donald did not respond to this, because all this is very normal. In fact, in this world, no one knows that he has special abilities, including a very small number of high-level leaders in their country, such as the head of their country.

Even the base he is in is specially prepared for him. In this world, people who know this base, apart from these people in the base, there are no more than ten people in the whole world.

After he walked out of the room, every time he walked in front of a soldier, these soldiers would salute him respectfully immediately, and then shout long live the Wanzi Kingdom, and he would naturally return the salute.

Soon, he came to the material warehouse not far away.

"You go out first!" He said to them just after he walked into the warehouse and saluted the guards nearby.

After hearing Donald's words, the two soldiers in the warehouse, without any hesitation, immediately turned around and walked out of the warehouse. After all, in this base, Donald is the boss, and no one dares to disrespect him.

But neither Donald nor anyone else in the warehouse found that among the soldiers who walked out of the warehouse, one of the soldiers’ pockets was abnormal, with some slight protrusions. It was obvious that there was something in his pocket, but it was Can't see what's in this pocket.

That’s right, the soldier’s pocket contained the special glass that Donald bought from Wang Bin, and it was a piece of glass that was only one millimeter thick and fifty millimeters in size. It was obvious that this soldier was nothing. Ordinary soldiers, but people with ulterior motives lurking in his base.

Of course, if it is other things, it can be easily found, but this glass is different, because the light transmittance of this glass is as high as 96% or more, and the thickness is only one millimeter. , So put it in your pocket, no one can find it.

There are a lot of materials in Donald’s warehouse. If Wang Bin were here, he would find that many of the things in this warehouse could not be produced in Donald’s time.

For example, a certain pile of steel talents in the warehouse is definitely not something that can be produced in this era, because these are not others just now, but some titanium alloy steels, but the quantity is somewhat small.