Manufacturing of distribution switch control equipment; sales of distribution switch control equipment; manufacturing of transformers, rectifiers and inductors; manufacturing of power facilities and equipment; sales of power facilities and equipment; retail of electronic components; manufacturing of electronic components; wholesale of electronic components; general machinery and equipment installation services; manufacturing of metal processing machinery; sales of mining machinery; manufacturing of electrical instruments and meters; sales of electrical instruments and meters; manufacturing of metal cutting and welding equipment; metal cutting and Sales of welding equipment; manufacturing of hardware products; wholesale of hardware products; retail of hardware products; manufacturing of pneumatic and electric tools; sales of pneumatic and electric tools; manufacturing of refrigeration and air-conditioning equipment; sales of refrigeration and air-conditioning equipment; manufacturing of communication equipment; sales of communication equipment; sales of communication equipment; manufacturing of plastic products; sales of plastic products; manufacturing of lighting fixtures; sales of lighting fixtures; business of wires and cables; manufacturing of auto parts and accessories; auto parts and accessories Sales; wholesale of auto parts and accessories; manufacturing of motorcycle parts and accessories; wholesale of motorcycles and spare parts; retail of daily household appliances; manufacturing of household appliances; furniture manufacturing; furniture sales; sales of generators and generator sets; sales of daily necessities; retail of sporting goods and equipment; wholesale of sporting goods and equipment; sales of outdoor supplies; sales of office supplies; retail of stationery; sales of first-class medical equipment; sales of second-class medical equipment; sales of metal materials; chemicals Production of industrial products (excluding licensed chemical products); sales of chemical products (excluding licensed chemical products); sales of building materials; sales of knitted textiles; metal structure manufacturing; import and export of goods; technology import and export; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; industrial Internet data services; mechanical equipment research and development; new energy prime mover equipment manufacturing; enterprise management; furniture installation and maintenance services. Licensed items: wire and cable manufacturing; pharmaceutical retail.