Wenzhou Aogong Valve Co., Ltd. is a scientific and technological enterprise specialized in the production of metal hard seal ball valves integrating R&D, manufacturing, sales and service.
The company has 8 national patents and 2 national invention patents, and is the drafting unit of national standard for eccentric ball valve (GB/T26146-2010).
The company is committed to scientific and technological innovation. With the assistance of relevant scientific research institutions and users, it has developed a series of ball valves, such as large-diameter two-way metal hard seal eccentric ball valves, polycrystalline silicon special ball valves, coal chemical special ball valves, rail-type two-way hard seal ball valves, aluminum factory special ball valves, high-temperature slag lock ball valves, non-standard ball valves, etc. All technologies have reached the international advanced level. The products are widely used in petroleum, chemical industry, natural gas, electric power, metallurgy, papermaking, sewage treatment and other industries, and are well received by users.

● Petrochemical
● Coal chemical industry
● Metallurgy