- Xi'an Boban Oil Tools Co., Ltd.
- Solid Control System, Downhole Drilling Tools, Rig Component, Tubular Handling Tools, Steel Wire Rope, Well Control Equipment, Fishing Tools, Mud Pump, Power Tong, Solids Control Equipment
Shaanxi
- HEBEI XINHUAFA PETROLEUM MACHINERY CO., LTD.
- Mud Pump Liner, Piston Assy, Valve,piston Rod, Fluid End Module
Hebei
- Liaoning Tolian Technology Development Co, . Ltd
- Machining, Drill Collar Machining, Sheave, Precision Machining, LWD, MWD, Petroleum exploration equipment, Pneumatic components,??Hydraulic Components, Servo-drive, Machine tool accessories
Liaoning
- Sisale Trading Co., Limited (Ningbo)
- Nail Lamp, Pipe Fitting, Valves, Gate Valve, Ball Valve, Casting, Chock Valve
Zhejiang
- TIANHE OIL GROUP HUIFENG PETROLEUM EQUIPMENT CO., LTD.
- Manufacture of Down hole Tools, Casing, Drill Stem Subs, Stabilizers, Drill Collars, Kellys, Heavy Weight Drill Pipe, Drilling Accident Handling Tools, Kelly Valves, Downhole Motors and Jars
Heilongjiang
- Orient Energy & Technologies Co., Ltd.
- Downhole Mud Motor, Drilling Bit, Mwd, Lwd, Trenchless Devices, Near Bit Geosteering Sys, Edge Resistivity
Hebei