Bop, Mud Pump, Casing Centralizer manufacturer / supplier in China, offering API 6A 15K Psi Frac Head (7-1/16", FF Alloy, NACE MR0175, Multi-Outlet), API 7K Zp275 Rotary Table 7250kN Static Load, Spiral Bevel Gear, API 6A FC Gate Valve Repair Kit (3-4", TC Alloy, NACE MR0175) and so on.