The company mainly operates in the production, sales, maintenance, and technology transfer of specialized equipment and accessories for oil drilling and extraction, construction machinery and accessories, agricultural machinery and equipment and accessories, diesel engines and parts, software and hardware development, production, sales, maintenance, and technology transfer; electronics, water treatment equipment and accessories, power distribution switch control equipment, dedicated traffic safety equipment, refrigeration equipment, monitoring equipment, fire-fighting equipment, communication equipment (excluding satellite TV broadcasting ground receiving facilities), fire alarms, heating cables and electric heat tracing, steel, standard parts, hardware products, fasteners, pipe fittings, valves and plugs, pumps and accessories, transformers, inverters, air conditioners, instruments and meters, motors, motor protectors, heat exchangers, flooring, wires and cables, bearings, sound insulation and thermal insulation materials, rubber products, glass products, ceramic products, plastic products, lighting fixtures, canvas, fracturing truck accessories, plumbing supplies, electronic components production, sales, and maintenance; non-woven fabric processing; energy-saving technology promotion services; drilling and extraction technology research and development and technical services; oilfield technical services; chemical products (excluding hazardous chemicals), industrial automatic control system devices, decoration materials, metal products (excluding precious metals), fertilizers, coal, stationery, furniture, sports goods (excluding crossbows), computers and auxiliary equipment, cosmetics, lubricants, marine lifesaving equipment, knitwear, clothing, shoes, and hats, lifting equipment, generator sets, guardrails, fences, automobiles and parts, feed, elevators, building materials, kitchen and bathroom supplies, and daily necessities sales and import and export trade