Oilfield Equipment, Rig Part, Mud Pump manufacturer / supplier in China, offering API 11b Spec 5/8, 3/4, 7/8, 1, 1-1/8 Inch Sucker Rod with Coupling, API 6A 2" 15000psi Manifold Circulating Hose Loop, API 7-1 Directional Drilling String Drilling Stabilizer/Non Magnetic Drill Collar and so on.