Wu Zhongda was stunned.

Where does he know what other ways are there?

"Factory 132 and Ye Draftmei's shareholding is not the old man's order?" He asked Yun Fei in surprise.

Originally, Wu Zhongda was not qualified to take care of these things, but Yun Fei told him these situations at the beginning, mainly for his later work.

"I'll give you a bottom on this matter today, I hope you don't spread the word." It stands to reason that the production of monocrystalline silicon crystallization furnaces is a profitable business. At least, the local collective enterprises that sell tungsten and molybdenum ore in China are very wealthy masters.

Wu Zhongda wanted to tell Yun Fei that he didn't want to hear Shenma's secrets, but his curiosity kept him from making any objections.

For those money-making projects, Yun Fei is generally reluctant to let outsiders get involved, just like the current Jiuyi Heavy Industry, if Yun Fei agrees to sell part of the shares, it is easy to expand the scale, and it will not be like now, can only expand the scale little by little, and also have to send out most of the machining business.

"Tungsten and molybdenum materials are some heavy metals, do you know this?" Yun Fei asked Wu Zhongda with a serious face, this secret has a lot to do with the quality of tungsten and molybdenum raw materials.

Hearing Yun Fei's question, Wu Zhongda nodded hurriedly, but he was thinking in his heart, what is the purpose of Yun Fei mentioning this now.

Tungsten is a chemical element, chemical symbol W, atomic number is 74, is a very hard, steel-gray to white transition metal, pure tungsten with a purity of 99.995% density of 19.35g/cm?. Its physical characteristics are very strong, especially the very high melting point of up to 3340°C, which is the highest of all unalloyed metals. Pure tungsten is mainly used in electrical and electronic equipment, and many of its compounds and alloys are also used in many other applications (the most common is the filament of light bulbs, tungsten is also used in X-ray tubes and superalloys, and of course, it is the main component of metal cutting tools – alloy tools).

Molybdenum is a chemical element. The chemical symbol W, the atomic number is 42, the physical characteristics are also very high, 99.99% pure molybdenum density is 10.2g/cm, and the nickel-based superalloy containing 18% molybdenum has the characteristics of high melting point (more than 2600 °C), low density and small thermal expansion coefficient, which is used to manufacture various high-temperature parts in aviation and aerospace. More than 50% of the world's molybdenum is used to make stainless steel every year.

"If these elements are only used to make steel, there is no problem, especially molybdenum, which is a trace element necessary for the human body. However, in the production of various parts on our monocrystalline silicon crystallization furnace, if the human body inhales too many of these heavy metal elements...... Yun Fei believes, Wu Zhongda, who studies machinery manufacturing. You should be able to understand the dangers.

"So what, since the 754 factory was established in the 60s, hasn't there been any problems?" In this era, the examination and protection of occupational diseases are far less formal than those of later generations.

Otherwise, it would not have waited until the 21st century, when countless silicosis patients in China are unwilling to die after suffering so much.

"......" Yun Fei was speechless, how could he tell Wu Zhongda about the research report that made 754 almost bankrupt in later generations?

"Processing of tungsten molybdenum products. Because the melting point is too high, it is impossible to smelt and make a blank like ordinary metal elements. Generally, it is through the sieving of powder (select those with relatively large particles in the microscopic state) - billet making - isostatic pressing - powder car (blank turning) - metallic sintering - fine turning - grinding these processes. These heavy metals, after entering the human body through the respiratory tract, can no longer be eliminated from the body at all. For a long time, if there is too much accumulation in the human body due to such an environment, you will get silicosis, silicosis. Do you understand? Yun Fei had to explain to Wu Zhongda.

He needs Wu Zhongda to understand, otherwise in the future, if this product is instigated by someone without knowing what he knows, he will use Jiuyi materials to produce tungsten and molybdenum products. At that time, he will be pushed to the forefront by public opinion.

"What's this, these two metal elements are already very dense, where is it so easy to enter the human respiratory system?" Wu Zhongda didn't expect that Yun Fei would give up such a big market for this reason.

"You know a fart, masks, there is no way to stop those subtle dust that can't even be seen by the naked eye from entering the human body! They are state-owned enterprises, and such things can happen, but we are private enterprises, if the employees in the enterprise have occupational diseases, and the media hype up them, who can afford it? Yun Fei was about to roar.

Since the reform and opening up, China has been continuously attracting investment, and many foreign-funded enterprises have entered China.

Among them, high-tech and some foreign capital with relatively advanced production technology are mainly concentrated in China's rare resources.

For example, China's tungsten and molybdenum, China's rare earth, these advanced production technology and advanced equipment, all come from abroad. The production process of tungsten and molybdenum products in China can be said to be the only advanced production technology in the whole world that is not kept secret from China.

The main purpose of these enterprises to export advanced production technology and advanced manufacturing technology to China is to import finished products from China!

Foreigners have such good intentions?

No!

The reason why they prefer to pay a high price to purchase finished products from China is because in the production process, these heavy metal materials are not only harmful to the environment, but also more harmful to the workers working in the workshop.

In terms of environmental protection, China will never be able to catch up with foreign countries.

Similarly, when it comes to workers' rights, not many people enforce them, although the country has clear laws and regulations. This is because most of the companies that produce such products are state-owned enterprises and township collective enterprises that are the leaders of the local economy.

"......" Wu Zhongda didn't expect that Yun Fei would be so angry.

"Let me tell you, if you work in that environment for a long time, the average person will not live more than fifty!" Yun Fei didn't want to explain to Wu Zhongda anymore.

It's too tiring to communicate with people in this era of exchanging the environment for development.

This kind of thing, if you don't experience it and see it with your own eyes, no one will believe it.

After Yun Fei entered the 754 factory, he often dealt with the tungsten and molybdenum products production workshop, and he still knew the environment very well. In any workshop, no matter how clean it is, in a few days, whether it is equipment or the ground, the whole workshop will be covered with a layer of tungsten molybdenum powder.

When the 754 Factory sold the factory land in the center of Rongcheng, there was a second-way dealer who specialized in recycling tungsten and molybdenum, and spent tens of millions of dollars to dig for the sewers of the 754 Factory, and they made millions in a few days! Moreover, after people spent money to dig the sewers of the 754 factory several times, some people spent hundreds of thousands of dollars to dig them again.

The powder in the sewer is washed directly into the sewer by the people in each workshop when they are cleaning on the weekend!

Back then, Yun Fei personally experienced a crisis incident in the 754 Factory, that is, the temporary worker incident in the 754 Factory.

Perhaps I also know that the management of 754 rarely goes to the production workshop, unless a particularly major accident or other thing is discovered, many leaders may not even appear in the production workshop once a day. Could it be that they are busy?

No, that's what they know, and the invisible powder in the air in the workshop will kill them.

Since the beginning of the 21st century, as China began to provide jobs eight years later, these enterprises in China have had a great deal of flexibility under the employment mechanism, and the employment system of the 754 factory has been changed to the coexistence of contract workers and temporary workers.

Technicians and management basically use contract workers, and the main production force of the workshop is all in the labor market to recruit temporary workers, these temporary workers contract is signed once a year, under normal circumstances, the temporary workers of the 754 factory, after five years of work the company will not sign a contract with them.

Of course, if you want to continue to work and perform very well, the company will find a way to transfer them to work in those workshops where the environment is slightly better and the dust is not too heavy. The company's official statement is that it is a reward for workers who perform well.

The average temporary worker will not work in the factory for more than three years, because not many people can withstand the 20-hour shift system. Since the 754 factory has temporary workers, they don't want to work in other companies for eight hours a day, they are 24 hours per shift, and continue to work 24 hours after 48 hours of rest! In other words, the temporary workers of the 754 factory have no rest time at all, unless there is a national holiday.

Even if they are contract workers, few college students are able to stay in the factory for a long time.

In the 21st century, the 754 factory does not have the technical strength of the era of the state package distribution, and many college graduates will leave as soon as they enter the factory and practice for a few days, because they know that even if they wear several layers of masks every day, when they get off work, there will be a thick layer of powder in the nostrils that cannot be seen by the naked eye.

It is precisely because of this that just after the end of the first decade of the 21st century, a contract worker who left the company was found to have an occupational disease and disclosed the greasy situation on the Internet, which almost bankrupted the entire 754 factory. At the same time, it also makes the shares of their group companies fall for a week!

"I know that you still don't believe it, you don't have to deny it, wait a day or two, when we go to the 754 factory to inspect, you will be able to understand after looking at the environment yourself!" The cloud is not speechless.

He really didn't want to go to such a harsh production environment to recall his painful experience.

Although he was in the machining workshop back then, the harm of dust was far less serious than that of the isostatic pressing embryo making workshop and wire drawing workshop. (To be continued......)

PS: Thank you Tianhai Xiangyun for your big reward.