General items: Technical services, technical development, technical consultation, technical exchange, technology transfer and technology promotion; Software development; Information technology consulting services; Research and development of mechanical equipment; Internet sales (except for sales of goods requiring license); Sales of mechanical equipment; Sales of reinforcement products for construction; Sales of special equipment; Retail of computer software, hardware and auxiliary equipment; Sales of new ceramic materials; Retail of hardware products; Sales of household appliances; Sales of home appliance parts; Retail of kitchenware, sanitary ware and daily necessities; Sales of optoelectronic devices; Wire and cable business; Sales of metal materials; Sales of ovens, furnaces and electric furnaces; Sales of chemical products (excluding licensed chemical products); Sales of special packaging equipment; Sales of lighting fixtures; Sales of electronic products; Wholesale of electronic components; Sales of communication equipment; Auto parts retail; Fire fighting equipment sales; Paint sales (excluding hazardous chemicals); Sales of plastic products; Sales of refractory materials; Sales of agricultural and sideline products; Sales of general merchandise; Domestic trade agency; Technology import and export; Import and export of goods; Centralized fast charging station; Operation of electric vehicle charging infrastructure. (except for the items subject to approval according to law, the company shall independently carry out business activities according to law with its business license)