1, the production process: this is one of the reasons that cause the product steel products oxidation, will tell from the production process and product characteristics, the product surface forming a thin layer of oxide film is the foundation of avoid oxidizing process, and steel products is one of the main characteristics different from other steel products, but due to inadequate production technology performance due to negligence or incomplete oxidation film, discontinuity, the oxygen in air is directly with the product elements of REDOX reaction, resulting in product performance oxidation occurs.

Ball valve and plug valve are the same type of valve, only its closure is a sphere, the sphere rotates around the centerline of the valve body to open and close.

stainless steel elbow , tee , reducer passed by SGS inspection agency and the products were qualified and are now shipped abroad.

Stainless Steel Pipe Surface finish:Annealed,Polished