Ring Joint Gasket, High Pressure Ball Valve, High Pressure Needle Valve manufacturer / supplier in China, offering Ball Valve The Pressfittings Are Made of AISI 316L/AISI 304L/ AISI 304 German Standard Dvgw W 534 Ranges From 12 to 108 mm Pipe Fittings Manufacturers, Telescopic Compensator Pipe Fittings Manufacturers, Press Gate Valve The Pressfittings Are Made of AISI 316L/AISI 304L/ AISI 304 German Standard Dvgw W 534 Ranges From 12 to 108 mm Brass Hose Nipple and so on.