Plug Valve, Gate Valve, Choke and Kill Manifold manufacturer / supplier in China, offering API 6A Wellhead 4-1/16′′10000psi Gate Valve Material Class Cc, API 6A Wellhead 4-1/16′′10000psi Gate Valve Material Class Dd, API 6A Wellhead 4-1/16′′10000psi Gate Valve Material Class Ee and so on.