Everyone has their own copper products to do, which makes the people who do iron parts in the store overjoyed, and finally has their own way out, no longer have to pull the whole family out to run the business, this business is tense all day long, not to mention, three meals a day have to save money, but also to pinch the fingers to save money.

There are so many products waiting to be developed, Han Sanjiang and they have to be busy day and night, some are very small valve cores, some are exhaust products, an exhaust body is supplied by a main exhaust gas, supplying five or ten small gases, this exhaust integration has high requirements and high precision. Some of the large copper pipes are still inch threads, which are reverse tapped, and the thread requirements are also high and full. In this way, the requirements of the wire attack are very high, the edge can not be too sharp, and the thread that is too sharp will be very sharp, not full, the bite will not be good, and it is easy to leak.

This takeover is such a difficult product, which makes Han Sanjiang difficult, and can't help but ask Wang Ling'er: "Ling'er, this product has such high requirements, why did you bring it back?" This is not an integrated valve, or an inch threaded pipe, if the thread is not attacked well, it will leak, its difficulty lies in the fact that the wire tapping is reversed, and it is very saturated with the kind of thread, the speed is too fast, if it is slow, the motor has to slow down, how is this good? How can we find the appropriate reducer, this is sad to me?"

Wang Ling'er smiled and replied: "My dear, this thing doesn't even want to do it themselves, that's why they threw out the sample, you think foreign things are so easy to receive! But when I took this pile of copper products that no one received, the gringo also joked and said, Chinese, hehe, dare to take this thing back to do it, is it crazy? Guess what I say?"

Han Sanjiang asked, "What do you say?"

Wang Ling'er replied with a smile: "We Chinese have the wisdom, ability, and perseverance to make these things, but we need time! As long as you give me half a year, I will definitely give you a satisfactory answer! Then the gringo replied with a smile, OK, just half a year, can't get it, you Chinese will never have a chance to get things in our hands in the future! Let's make a decision, the four horses will be difficult to chase! I brought this thing back, I really didn't expect that this thing is really difficult to do!" Sanjiang, if you don't do it well, you won't have the opportunity to make foreigners' products in the future! This is the bottom line, if you do a good job, we will have a way to do foreign trade products in our store, and foreigners will come to the door by themselves, and when the business comes, you can't stop it!"

Han Sanjiang glanced at Wang Ling'er meaningfully, and said: "Since you represent us Chinese, even if it is difficult to gnaw the bones, we must take them down in this half a year! We must not disgrace the Chinese! Think of a way, rack our brains, we will definitely win these technical difficulties, don't worry, we Chinese are not a bad race, look at me, if you can't get these copper bumps, I won't get married, if we do a good job, we will get married, what do you think of this matter?"

Wang Ling'er whispered in Han Sanjiang's ear and said, "You kid, I'm all your person now, what do you mean by this?

Han Sanjiang smiled and replied softly: "You found this death back for me, it's hard not to die! Hehe, dear, believe me, we will definitely succeed, as long as we find the reducer, this matter will be easy to do! We are getting in touch with Wuhan University about the reducer, and our school has promised to find appropriate reducers all over the country." I believe that we will be able to find it soon, we will first make this integrated valve sub-product, the large one is the problem of tapping, and there is no other problem. ”

Wang Ling'er couldn't help but ask: "If you don't get it right in half a year, you won't marry me, do you want to cheat?"

Han Sanjiang said: "No, we will definitely do it, three stinkers are better than Zhuge Liang, four of us, one more, if we can't do it, the four of us don't fucking get married! If there is no pressure, there is no motivation, and if there is no motivation, there will be no perseverance! As long as everyone perseveres, there is nothing that cannot be done." ”

As soon as she said this, Niu Caiping, who was standing on the side, became anxious and shouted: "Han Sanjiang, you are too ruthless, aren't you? We are not a product, you can't get it, why don't you get married? If this belly gets bigger, what should I do? Tell me, what should I do?"

Lu Yimin was also anxious, and shouted: "Han Sanjiang, you can't do this, we are all together, can this be hidden from everyone? If you want to get married as soon as possible, it is best to just these few days!"

Gong Xuanqun said: "Yimin, don't make trouble, it's not good for these two months, we're busy opening the chuck to make copper rods, and hurry to make this copper bump, even if the belly is big, it's also my species, what are you afraid of? It's okay to get married later, who doesn't know that we are a couple? Isn't it just a marriage certificate, ask Secretary Sun to get it out tomorrow, how about it? When we make a good product, we will make a wedding wine! Isn't this a double happiness?"

Jiang Yuanqiao smiled and said, "I don't care, even if I don't succeed next year, I don't have to worry about urging marriage······!"

Han Sanjiang said: "Jiang Yuanqiao, don't look at the top, see which girl is worthy of you, don't do this and that, this product is related to the face of our Chinese, if we don't do well, we will lose face in front of foreigners, do you know? Why do we lose to foreigners? Are we really eggy! Maybe straw bales!"

Jiang Yuanqiao listened to Han Sanjiang's words, smiled and stopped laughing, and replied solemnly: " Of course, we can't lose to foreigners, this must be in a hurry to make qualified samples half a year ago, handed over to them, let us Chinese also raise their eyebrows once, in fact, this product is difficult for them to do by themselves, and their machinery is better than ours, it is easy to do, but this requirement is too high, there are very few enterprises to do, no one has received it on the display case, all the good ones have been taken away, and the rest are prohibitive products, stay there for some days, just look at the appearance of this copper!

The main body of the air exhaust is a strip-shaped rectangular copper piece, 20 cm long, four cm wide in square section, and the main trachea is a circular tube of 1.5 cm, the front end is a fine thread and the internal tooth bite of the main body is integrated, there is an external thread on the circular body, and the thread is the valve sub-arc head, as well as the socket of the gas pipe, the pipe fitting that fixes the air pipe is a hexagonal inner tooth body connector, and the tail end also has the locking part of the fixed air pipe.

Opposite the valve main is five or ten small valves similar to the valve main tube, all of which are plugged into the valves, and after ventilation or oil, all the valves cannot spill gas and oil. Communicating with the valve main is a long, straight hole in the middle, only three millimeters in diameter, and the outlet terminal is blocked by a plug. This integrated valve sub-fitting requires the error value of the three wires, and the thread anastomosis reaches about 92%, that is, there is almost no gap anastomosis, and the thread that fits into it can only be successful once, otherwise, as long as there is a quality problem with a component, the whole body will be scrapped. The difficulty is in the anastomosis of the fine teeth, once there is a tooth docking problem, it will lead to the leakage of gas and liquid, to the greatest extent, the product qualification rate is very low, which is why they are unwilling to do it themselves.

After everyone looked at the whole structure, they immediately looked at each other, Mo Damin and I leaned back, his face was green, and he shouted: "What is this, this tooth is so thin, and the fit is quite good, the tooth mark is as smooth as water, there is no trace of flaw, this inner and outer teeth are tightly matched, what the hell is this? If the tapping speed is fast, the tooth mark will be strained at the moment of teething, so that the tooth mark will appear abrasion, even if it is attacked by hand, there will be a possibility of breaking the tooth." There is no problem in the rest of the tube, the problem is in the right teeth, the slightest deviation between the male and female, the gas will leak. Boss, do you see this?"

Han Sanjiang looked at it and said: "Mo Damin, what do you mean by this, what foreigners can make, why can't we make it if we change it? Could it be that their brains are good, but our brains are not good? There is nothing that can't be done, if it doesn't work, we can find a way! We still have to find a reducer, and this guy has to rely on it." ”

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