Manufacturing of adhesives (except controlled chemicals and hazardous chemicals); manufacturing of other synthetic materials (except controlled chemicals and hazardous chemicals); manufacturing of other synthetic fibers; wholesale of chemical products (except hazardous chemicals); sales of industrial salt, salt brine and salt chemical products (except controlled chemicals and hazardous chemicals); retail sales of chemical products (except hazardous chemicals); manufacturing of organic chemical raw materials (except controlled chemicals and hazardous chemicals); other non-hazardous basic chemical raw materials Manufacturing; wholesale of metal products; retail of metal decorative materials; wholesale of mechanical and electrical equipment; wholesale of electrical equipment; wholesale of office equipment and consumables; sales of general machinery and equipment; retail of general machinery and equipment; retail of machinery parts; rental of machinery and equipment; wholesale of automobile parts; sales of automobile charging modules; retail of automobile parts; retail of motorcycle parts; wholesale of hardware products; wholesale of hardware; wholesale of wires and cables; retail of switches, sockets, wiring boards, wires and cables, and insulation materials; Wholesale of rubber products; retail of rubber products; wholesale of plastic products; retail of wooden, plastic and leather daily necessities; retail of decorative plastics, chemical fibers, gypsum and cloth; wholesale of electronic products; retail of electronic products; retail of department stores (except food retail); comprehensive retail of daily necessities; wholesale of stationery; retail of stationery; sales of packaging materials; wholesale of clothing; wholesale of clothing accessories; retail of clothing; retail of clothing accessories; wholesale of textiles, knitwear and raw materials; wholesale of textiles and raw materials Retail of knitwear; wholesale of leather and leather products; wholesale of instruments and meters; wholesale of ceramics and glassware; retail of ceramics and glassware; retail of ceramic decorative materials; wholesale of handicrafts (except ivory and its products); retail of arts and crafts (except ivory and its products); wholesale of toys; retail of toys; business consulting services; import and export of goods (except specialized products); technology import and export; wholesale of building materials and decorative materials; research and development of graphene materials; research and development of nanomaterials;