This time, they were completely baffled.

If you make a needle, everyone can do it.

However, it is also difficult to have a hole and groove in the middle. The needle is so thin, but if so

Zhang Feng explained the infusion needle he thought of in detail, but Moco ADO suddenly realized: "if so, the old slave is willing to try, but it may not be able to make it. You give me two days."

Zhang Feng shook his head, stretched out a finger and said, "there is only one day a day!"

Hearing the speech, alchinnon's face changed slightly, but they nodded heavily and left in a hurry. When they left, they also took away the infusion needle Zhang Feng gave her, as well as the production drawings of syringes and needles.

Then he began to say to mokoado, "I heard that you were a top glass master in the western regions? Are you an expert in making glass in the world?"

Moco Addo refused again and again, but he didn't dare to call himself an expert.

Zhang Feng smiled and said, "you can afford this title. Don't refuse. There are not so many rules here. If you can do it, you can do it. If you can't do it, you can't do it. This is done. Merkel was moved by his speech, but he didn't know what he wanted to do. Standing aside silently, he seemed to know what he was worried about.

Zhang Feng said, "in fact, you don't have to worry so much. I'm just like home. What are you worried about? In fact, I have something here. If you like, I can pass it on to you now and let you go back to your old business."

Zhang Feng talked about the concept of the infusion tube and the infusion bottle. Zhang Feng wanted to talk about it just when he went to kraft sugar. However, although these two people have been in contact with rubber for some time, if they want to make something with such high-end skills, it is estimated that Zhang Feng is also discussing it in his heart, so he found Moco ADO.

According to Zhang Feng's detailed explanation, the glass bottle infusion set is easy to handle, mainly the infusion tube made of rubber, which can't help but make him a little embarrassed.

He knows rubber, because sometimes when making glass, he will use some of these things, but at this time, he should completely use cooked rubber to make a plastic pipe. What is plastic?

How can it be useful to make a rubber tube?

Seeing that he couldn't explain, Zhang Feng simply found a rubber in these rare treasures given by five surnames and seven hopes from the sundry room. Then he found a small copper bowl and put it on the oil lamp to cook slowly.

Put a piece the size of a nail in a soup bowl and let it boil hard

And the eyes of Moco ADO stared at the cooking process of the copper bowl.

The process was very long. They chatted about some other things and mokdo's progress in the fire gun. About an hour later, a lump of rubber, which was only the size of a fingernail, had become as clear as water. Zhang Feng got up, pulled down a bamboo sign of medium size from the broom, came to me and her and said: "See clearly, this is the manufacturing method of this hose."

While talking, Zhang Feng made a mold with mud, a mold similar to a brick, and then slowly pressed down the bamboo sign in his hand to make a model. Then he carefully put his hand in the bowl and boiled it into water like rubber glue and poured it in.

At about half the time, Zhang Feng quickly stopped, filled the bamboo sign network in his hand, pressed and rolled in the intersecting gap, then put the bamboo sign on the real rubber, put it back into the bowl, turn up the flame of the oil lamp, and then cook.

A moment later, until this time, Zhang Feng took out a sharp knife and cut the solidified rubber fracture along the mold. Only then did he carefully take out the translucent thing stained with a lot of mud and put it aside. Then again, he made a mold, poured the other half in the same way and cut it again.

At this time, Zhang Feng said: ", you have to look carefully. This is the key place."

While talking, Zhang Feng used a smaller bamboo stick and stood with the rubber water in the copper bowl. He applied it evenly on the half of the mold at this time, at the cuts on both sides of the strange semicircle. After it was done, Zhang Feng carefully docked the other half. Until now, Zhang Feng was deeply relieved.

In fact, he can't make this thing. The key is that he doesn't know how to teach, so he can only wait for the plastic pipe to solidify. Zhang Feng cleaned up the mud stains on it. After cleaning up, he left a transparent pipe the size of chopsticks at the end of the month. Zhang Feng sent the pipe in his hand to Merck.

Mocha duo was shocked like heaven and man, and his heart was like heaven and man. He took the pipe with his hands. The pipe was very soft, just like Yang Jing who had been dried by the wind. He was quite flexible. When he looked at one end of the pipe, there was actually a hole in the middle. Like the hole the size of the little bamboo stick just now, mocha duo asked suspiciously, "is this the kind of pipe you said?"

Gao Feng nodded: "I want this kind of thing. Do you know what to do now?"

Seeing that he was holding the treasure, mocha nodded heavily, "I know."

He hesitated from his arms and sent him a summary of what he had made these medical devices. This thing should be kept carefully and should not be passed on. This is my secret,