... No leakage ISO9001 and ISO14001 Approveed J1005 Screw End Brass Gate Valve 1.Material: C3771, C37700N, CW614N, CW617N, as per ... demands and some standards such as GB, IEC, NBMA, JIS, DIN, etc.We have passed three management system certificates, ... and production of Copper Valves, Gas Valves, Gate Valves, Ball Valve, Radiator Valve, Stop Valve, Check Valve, Bibcock, Angle Valves, Brass Fitting, Copper ...