Chaoshen Technology Trading Mall

For Donald's praise, Wang Bin didn't feel any burden in his heart, but nodded with a smile. That's right, these screw rods made of special glass are indeed as beautiful as works of art.

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

I think you are already very clear about the performance of the glass produced by our Tiangong Technology, so I use this glass as the material of the screw rod. I don’t think I will say much about the quality. Let’s talk about these The precision of the screw rod!

Let's take a look at this ball screw with the highest precision first. This is the second-level precision screw in my world! Its precision has reached a length of every 300 millimeters, and the error does not exceed 4 microns! By the way, I think you must know what a micron is, so I won't say more.

And even if such a precision screw is placed in our world, it cannot be manufactured by any company or country. I will not talk about the importance of such a precision screw for machine tools and other equipment. I think you must I know..." Then Wang Bin started the flickering mode, and introduced this screw rod with a sweet mouth.

"Mr. Donald, this kind of screw is only sold for 1 energy coin and ten pieces. It is definitely worth the money. Don't think about it, Mr. Donald!" Finally, with Donald's dumbfounded expression, Wang Bin finished introducing this screw. pole.

But Donald was obviously not fooled by Wang Bin, but lowered his head and thought about it, although the precision of this screw rod is definitely very high for the world he lives in, and even the country he lives in has been called The world's top industrial power, but they can't process a screw like this.

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

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

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

Then, before he could speak, he picked up a fifth-grade screw and continued: "This is even a fifth-grade screw with a precision of 23 microns, which is 0.023 millimeters." The introduction of these screw rods is over.

As for the lower-precision screw, Wang Bin did not manufacture it, so naturally there is no such thing in the mall, because Wang Bin does not think that it is meaningful 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 should not be a problem to manufacture such precision screw rods.

After listening to Wang Bin's introduction, Donald did not speak immediately, but after thinking about it quietly for a while, he said to Wang Bin: "Shopkeeper, first give me ten second-level precision and One hundred and three-level precision screw rods, I will take them back for a try first, and if possible, I will place more orders."

"Okay! Yes, Wang Bin said." Soon Wang Bin picked up ten second-level precision and one hundred third-level precision screws and handed them to Donald, and said to him: "Mr. Donald, I hope these wires You are satisfied with the rods, of course, if possible, next time you come to our Tiangong Technology store, you can also 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 had sold to Donald that the restless world of Donald and the others had become even more turbulent.

 …

The world where Donald William is located is a certain Normandy Landing Battle World 4D country.

In a huge underground base, Donald's room was originally empty, and 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 first looked at his room for a while, and found that there was no one in his room, and nothing had been touched. At the same time, there was nothing on the door. He was relieved when there was a change, which showed that no one had visited his room when he went to the technology mall to buy supplies.

So he tidied up 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 patrolling soldiers, especially near his room and the warehouse not far next to it and the manufacturing workshop.

Donald didn't respond to this, because all this is very normal. In fact, in this world, not everyone knows that he has special abilities, including a very small number of high-level officials in their country, such as their country's head of state.

Even the base he was in was specially prepared for him. In this world, apart from these people in the base, there were no more than ten people in the whole world who knew about this base.

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

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

"You go out first!" He said to them after he walked into the warehouse and saluted each other with the guard soldiers next to him.

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

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

That's right, the soldier's pocket is exactly the special glass that Donald bought from Wang Bin, and it is a piece of glass that is only one millimeter thick and 50 millimeters in size. It is obvious that this soldier is nothing Ordinary soldiers, but people with ulterior motives lurking in his base.

Of course, if it was something else, it would be easy to spot, but this glass is different, because the light transmittance of this glass is as high as over 96%, and the thickness is only a mere one millimeter , so in the 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 things in this warehouse could not be produced in Donald's time.

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