Qingdao Bentigh invested about ten million RMB and bought CNC machining equipments from 1997 when the factory was built. And now we owned a strong R&D and manufacture team with rich experience in Valve. We mainly deal with the supply of OEM gate valve, Y-strainer, swing check valve, lift check valve, globe valve, angle valve, ball valve, wafer check valve, butterfly valve and foot valve etc. The total exported amount in 2011 reached ten million RMB. Bentigh offer customers the one stop servic