Sales of distribution switch control equipment; Sales of mechanical and electrical equipment; Sales of plastic products; Wholesale of hardware products; Sales of instruments and meters; Sales of power electronic components; Wholesale of electronic components; Sales of hydraulic power machinery and components; Sales of pneumatic power machinery and components; Sales of communication equipment; Mold sales; Sales of lighting fixtures; Sales of charging stations; Sales of intelligent transmission and distribution and control equipment; Sales of motor vehicle charging; Sales of electrical equipment; Wire and cable management; Sales of forgings and powder metallurgy products; Sales of metal products; Sales of rubber products; Sales of power facilities and equipment; Metal structure sales; Internet sales (excluding sales of goods that require licensing); Sales of new energy original equipment; Battery sales; Sales of metal cutting and welding equipment; Sales of metal tools; Sales of refrigeration and air conditioning equipment; Wholesale of automotive parts; Wholesale of motorcycles and spare parts; Sales of household appliances; Non residential real estate leasing; Housing rental; Sales of generators and generator sets; Sales of micro and special motors and components; Sales of bearings, gears, and transmission components; Sales of gears, gear reducers, and gearboxes; Technical services, development, consultation, exchange, transfer, and promotion; Import and export of goods; Technology import and export (except for projects that require approval in accordance with the law, business activities shall be carried out independently based on the business license in accordance with the law).