Bop, Mud Pump, Casing Centralizer manufacturer / supplier in China, offering API 6A Drilling 15000psi Choke Manifold Choke Manifold Kill Line, API Standard Drill Pipe 5dp 3-1/2 5-1/2 Hwdp Drill Collar for Oilfield, API Spec 7K Wellhead Tools High Quality MP Type Safety Clamp for Well Drilling and so on.