Oilfield Products, Drill Rig, Petroleum Equipment manufacturer / supplier in China, offering API 16D Koomey Bop Control Unit Pneumatic Control Hydraulic Bop Control Unit with Drilling Equipment Well Drilling, API Drilling Mud Pump Hydraulic Cylinder or Fluid End Module for Emsco, Gd, Now, Ideco, Nb, F, Pz, T Series, etc., Big Diameter Yk05 Tungsten Carbide Hole Opener for Construction Works, Opener Fixed Diameter Hole Opener and so on.