Valve, Pipe Fitting manufacturer / supplier in China, offering ANSI/GB Standard for Water Treatment Systems 304 Stainless Steel Threaded Hard Seal Gate Valve with High Corrosion Resistance, API/GB Standard for Water & Chemical Pipelines High Pressure 304 Stainless Steel Threaded Horizontal Check Valve, API/GB Industrial High Pressure 150 Mesh 304/316L Stainless Steel Y-Type Threaded Filter and so on.