Over the past two years, Sino-US trade disputes have also cast a shadow over international cooperation in precision parts processing. Many precision machinery parts processing plants rely on imported raw materials and parts processing technology from the United States. The tariff increases from time to time have pushed up the import cost of raw materials, making the processing of mechanical parts in the domestic market lose its advantage in the international market. This is easy to handle, and can be replaced by raw materials from other places of origin. If you rely on the processing technology of the United States and the other party plays the card of cutting off the supply, you will strangle the Chinese enterprises!

This year, mechanical processing in many fields has been affected by U.S. cut-off technology or equipment, such as unmanned aerial vehicles, surveillance cameras and mobile phones. The United States has already announced that it will prohibit a manufacturing enterprise in Shenzhen that manufactures unmanned aerial vehicles from using U.S. technology, and several precision manufacturing plants in Zhejiang that produce surveillance cameras are also among the sanctions. This sword is already hanging over the head of a famous mobile phone brand in Shenzhen. U.S. CPU suppliers may be ordered by the government to cut off their supply at any time.

In the field of mechanical processing and manufacturing, the normal international division of labor is a win-win. Trade between the two sides can give full play to their comparative advantages. China's precision mechanical parts manufacturers benefit from it, and U.S. suppliers occupy the high end of the interest chain. However, the United States can only force Chinese enterprises to go their own way by cutting off supply of key technologies to Chinese downstream machinery parts processing enterprises for unwarranted reasons.

In some core mechanical processing technologies or key supply chain links, China's precision mechanical parts processing plants must make breakthroughs in independent innovation and improve their control ability in international cooperation so as to avoid being restricted by others in core technologies.