Plug Valve, Gate Valve, Choke and Kill Manifold manufacturer / supplier in China, offering Wellhead 2-9/16''3000psi Gate Valve with Material 4130 Psl3, 6A Wellhead 2-9/16''gate Valve Pr1, 6A Wellhead 3-1/8''gate Valve Pr1, Pr2 and so on.