Mud Pump, Top Drive, Power Tongs manufacturer / supplier in China, offering Oilfield OCTG Spares Oil Pipe Casing and Tubing Coupling for API 5CT, API 5CT J55 L80 N80 P110 Tubing, Casing, Drilling, Couplings for OCTG Spares, Corrosion Resistant OCTG Casing Pipe L80 13cr Material OEM Support and so on.