Plug Valve, Gate Valve, Choke and Kill Manifold manufacturer / supplier in China, offering API 6A Casing Spool 13-5/8*9-5/8 C-22 10000psi Casing Head, API Spec 6A Wellhead Christmas Tree X-Mass Tree, API 16c Fmc/Spm 4" Style 30 F*M Swivel Joint and so on.