The copper valve is a copper-cast valve, which belongs […]
The copper valve is a copper-cast valve, which belongs to industrial parts. It was first developed in China by Ningbo, Zhejiang Province. In the early 1980s, Zhejiang Ningbo took the lead in developing manufacturing processes and changed the history of long-term use of cast iron valves in China. The sand casting process was initially used in the manufacturing process and changed to the forging process in the early 1990s. At the beginning of the 21st century, China has developed into a world copper valve manufacturing center.
Valve casting, forging
(1) Sand casting: The earliest production mode in the valve field, because the casting type does not have enough pressure, the valve produced by this process is prone to generate sand holes, which leads to a series of problems caused by product leakage.
(2) Hot forging and forging: The body of the forged press will not have trachoma, and the appearance will be more beautiful.
Product pressure test
Packaging and storage
18 years experience in sanitaryware fitting industry
Our products are sold to more than 30 countries and regions
We have a large production team, R & D team
Our factory has a total investment of more than 30 million.
7000² square meters of factory area
We have more than 10 patents for inventions