Oil drilling、 Drilling、 Well Logging、 Exploration technology development and technical services; Promotion services for energy-saving technologies; R&D, sales and maintenance: Mechanical equipment, Cleaning and sanitation equipment, Special equipment for environmental protection, motor, Automation control equipment, water treatment equipment, transformer, pump, Wires and cables、 electric motor、 Electronics; Production、 Processing: Oil drilling equipment and accessories, Pumping units and accessories, Standard parts, lifting equipment, Well Tools, Downhole Tools, Pneumatic and electric tools, electrical equipment, Fence guardrail, Hardware products, transformer, air conditioner, electric motor, Power equipment and accessories、 Automation complete control system, Pipe fittings, rubber products, plastic products, Distribution switch control equipment, electrical equipment, Impermeable cloth, Mechanical equipment and accessories, stainless steel products, Metal seals, rubber seals, Stainless steel corrugated plate packing, Metal chemical fillers, Sealing packing, Heat shrink tape, separator, Wellhead equipment, Special equipment for environmental protection、 Graphite and carbon products, Water treatment equipment and accessories, Cleaning equipment、 Pipeline equipment, Special equipment for chemical production, Chemical products( Does not contain dangerous goods or highly toxic substances); Sale: Construction machinery and accessories, Diesel engine parts, Fracturing truck accessories, Auto Parts, Tractor accessories, Boiler accessories, Computer-aided equipment and accessories, Refrigeration equipment, General machinery, Instruments, Miscellaneous items, steel, Electronics, office supplies, sporting goods, cosmetic, Handicrafts, bearings, Building Materials, Furnace burners, sound insulation、 thermal insulation materials, Metal materials, Marine life-saving equipment, Electric heating cables and heating tapes, Firefighting equipment, Communication equipment, Metal products, glass products, ceramic products, leather products, Wood products, Kitchen and bathroom appliances, Knitted textiles, Clothing, shoes and hats, dynamo, furniture, lighting equipment, photographic equipment,Daily groceries, agricultural machinery, primary agricultural products; Valve maintenance、 R&D; Research and development of instruments and meters。