- Ningbo Zhongmu Rubber Products Co., Ltd
- Rubber Products, Rubber Accessories, Sealing Ring, Oil Seal, Rubber Shock Absorber, Phenol Resin Products, PU Products, PTFE Products, PFA Products, High-Speed Train Accessories
Zhejiang
- Hebei Yingpai Import & Export Trading Co., Ltd.
- Drilling Rig Equipment and Parts, Mud Pump and Parts
Hebei
- Best-all Petroleum Machinery Co., Ltd.
- Mud Pump Liner; Mud Pump Piston; Valve Assembly; Cylinder Liner; Bi-Metal Liner; Mud Pump Cylinder
Shandong
- Juli Sling Co., Ltd.
- Steel Wire Rope, Lifting Sling, Mooring Rope, Ratchet Straps, Lifting Chain, Shackle, Elevator Link, Lifting Hook, Lifting Beam, Chain Block
Hebei
- Union Steel Industry Co., Ltd.
- Steel Pipe, Seamless Steel Pipe
Hunan
- Qingdao Hna Oilfield Equipment Manufacturing Co., Ltd.
- Mud Pump Parts
Shandong
- Yantai Kytider Energy Equipment Technology Co., Ltd.
- Drill Pipe, Gate Valve, Petroleum Equipment, Christmas Tree, Frac Tree, Frac Hose, Bop, Mobile Housing, Chemical for Oilfield
Shandong
- Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
- API 5CT Tubing and Casing Pipe, API 5CT Tubing and Casing Pup Joint, API 5CT Tubing and Casing Coupling, Down Hole Tools Cementing Tools
Tianjin
- Shandong Rosenwell Petroleum Technology Co., Ltd.
- Mud Pump, Top Drive, Power Tongs, Cement Tools, Solid Control, Bop&Well Head, Handing Tools, Flowline Products
Shandong
- Shandong Toplink Chemical Co., Ltd.
- Methylene Chloride Propylene Glycol
Shandong
- Dongying Tianrui Petroleum Technology Co., Ltd.
- Downhole Tool
Shandong
- Shijiazhuang Jimai Machinery Equipment Technology Co., Ltd.
- Drilling Rig, Drilling Equipment, Gold Mining Equipment, Horizontal Directional Drilling Rig, Borehole Drilling Rig, Drill Rig, Water Hole Drilling Machines, Diamond Drilling Rig, Drill Machine, Drill
Hebei
- Hejian Tianrun Machinery Co., Ltd.
- Tricone bit,PDC bit
Hebei
- Shandong Weima Pumps Manufacturing Co., Ltd
- Sucker rod pump, Oil lifting equipment, Sucker rod pump parts, Sucker rod pump, Rodless complete oil production system
Shandong
- Jiyuan City East Heavy Industry Co., Ltd.
- Petroleum drilling tools
Henan
- SHANDONG USEEN CASTING CO., LTD.
- Pig iron; Casting
Shandong
- Nantong Percent Precision Manufacturing Co., Ltd
- Petroleum Drilling Tools; Handling and Wellhead Tools
Jiangsu
- Dongying Tongbo Petroleum Electronic Instrument Co., Ltd.
- Electromagnetic Wax Prevention Equipment, Ultrasonic Alloy Anti-scaling Device, Crude Oil Water Content Tester, Three Metering Devices for Oil Gas and Water
Shandong
- Huludao Boyu Petroleum Machinery Co., Ltd.
- Bucking Machine, Hydro-static Testing Machine, Pre-tightening & Screwing Unit, Straightening Machine
Liaoning
- Ruiyuan Holdings Group International Trade Co., Ltd.
- Tractor, Maize Silage Harvester, Corn Grain Harvester, Drones, Aerial Survey Drone, Semitrailer
Shandong
- Yancheng Xinyongjia Petroleum Machinery Manufacturing Co., Ltd.
- Downhole Motor, Mud Motor, Pdm Motor, Drilling Mud Motor, Mwd Drill Pipe, Dhm Motor, Diesel Generator, Diesel Engine, Diesel Pump, Tractor Pto
Jiangsu
- Zhuzhou Chuangrui Cemented Carbide Co., Ltd
- Carbide Mould
Hunan
- Ningbo Yinzhou Guangway Machinery Co., Ltd
- CNC Machining Parts, CNC Turning Parts, Forging Parts, Copper Extrusion, Shaped Copper, Silica Sol Casting
Zhejiang
- Guangzhou NextGen Technology CO.,LTD
- Rubber and Plastic Seal, Rubber Parts, Hydraulic Pneumatic Components, Instruments etc
Guangdong
- Jiangsu Qiulin Special Energy Equipment Joint Stock (Limited) Company
- Cryogenic Storge Tank, Pressure Vessel, Steel Structure Weldment, Liquid Gas Storage Tank, Chemical Storage Tank, Skid Design and Fabrication, LNG Fulling Station, Reactor Vessel, OEM Steel Structure Fabrication
Jiangsu
- Goldenman Petroleum Equipment Co., Limited
- Drill Pipe; Heavy-Weight Drill Pipe; Drill Collars; Annular Bop
Shandong
- Shenzhen TANK Drilling Technology & Equipment Co., Ltd.
- PDC Drill Bits, Tricone Bits, DTH Hammer, DTH Drilling Bits, Top Hammer Drill Bit, Drill Pipes, PDC Cutters, Oil Drill Bits
Guangdong
- CRRC Yongji Electric Co., Ltd.
- Motor, Alternator, Generator, Converter, Wind Driven Generator, IGBT
Shanxi
- Hebei Ruishi Bits Manufacturing Co., Ltd
- Tricone Bit, Drill Bit, PDC Bit
Hebei
- Shandong Xilong Machinery Equipment Co., Ltd.
- API Elevator, Rubber Hose, Power Tongs, Wellhead & Well Control System, Drilling Rig Accessories, Swivel, Downhole Tools, Cementing Tools, Kelly Pipe Hexagonal Pipe Drilling Pipe, Non-Magnetic Drill Collar
Shandong