Bop, Mud Pump, Casing Centralizer manufacturer / supplier in China, offering 1-1/16-7-1/6" Gate Valve API 6A, 15000 FT-Lb Manual Tongs Torque Alloy Steel Construction API 7K Certified, Compact Skid-Mounted Bucking System, 8, 000 FT-Lb, for Workshop or Field and so on.