Mud Pump, Top Drive, Power Tongs manufacturer / supplier in China, offering API 5CT Oilfield Petroleum Seamless Pipe Steel Casing and Tubing for OCTG Oil/Water Well Dril, API 5CT Oil and Gas Well Casing Tube J55 K55 N80-1 N80q Casing Tubing Drill Pipe for OCTG Oil Drill Well Drill Pipe, High Quality Casing Pipe Seamless Steel/Oil Gas Casing Drill Pipe/P110 N80 Carbon Steel Pipe for Drilling Oil Gas Wells and so on.