What are the OEM manufacturers of large-diameter valves in China? Such as butterfly valve DN 1800 casting.

Fenghua Xu Fan Machinery Manufacturing (Gravity Casting) Co., Ltd. is a professional manufacturer of aluminum die casting and gravity casting, located in Xikou Town, Fenghua City, Zhejiang Province. The company has many years of experience in aluminum die casting and gravity casting, and is equipped with advanced casting, heat treatment and machining equipment. Among them, most products are exported to Europe, America, Australia and other markets, and have become an important production base for Ningbo aluminum die-casting export. The company has 2 senior engineers and 6 engineers, with strong product and mold design and casting capabilities.