Valve We provide industrial steel valva according to API, ASME, ... total output by ball valve and gate valve respectively.Metal seated ball valve, below sealed valve and water check valve are the featured products. ... electronic,hydraulic-pneumatic etc.Connection End:flanged, BW, SW, NPT, water type, etc.Materials(casting): WCB, WCC, LCB, LCC, ... F316L, F11, F22, F6, F51, F316H, F321, F347, etc Valve