Since the beginning of the 21st century, some well-known domestic copper valve manufacturers have broken conventional ideas and bravely innovated and practiced, and have developed a large number of new products, which greatly improved the scope of application of copper valves in engineering applications. In particular, the successful experimental development of the all-copper hydraulic control series has not only made a qualitative leap in the manufacturing process of copper valve products, but also greatly promoted the overall competitiveness of the copper valve industry.