Plug Valve, Gate Valve, Choke and Kill Manifold manufacturer / supplier in China, offering Wellhead 3-1/16′′3000psi Gate Valve with Material 4130 Pr1, Wellhead 3-1/16′′3000psi Gate Valve with Material 4130 Pr2, Wellhead 3-1/16′′3000psi Gate Valve with Material 4130 Pr1, Pr2 and so on.