API 16A Annular Bop, Mud Gate Valve, Plug Valve manufacturer / supplier in China, offering Flexible Kill/Choke Hose Line and Kill Line Coflex Choke API 16c, 2" 3"4" Type 50 Connection Fig Union Oil Long Radius Swivel Joint, 3 " Weco High Pressure Weco Pup Joints and so on.