Oilfield Equipment, Mud Pump, Mud Pump Parts manufacturer / supplier in China, offering API Offshore Iron Roughneck St80 Hydraulic-Drive Well Drilling for Wellhead, Offshore Oil and Gas Drilling Equipment Iron Roughneck Smart Wrench St80 with API 7K 8c Q1, API Offshore Iron Roughneck St120 Hydraulic-Drive Well Drilling for Wellhead and so on.