Wholesale of hardware products; Retail of hardware products: Sales of metal materials; Sales of building materials; Sales of anti-corrosion materials; Sales of insulation materials; Sales of metal parts for construction: Sales of rubber products; Sales of instruments and meters; Furniture sales: Wholesale of daily necessities; Sales of daily necessities: Sales of daily necessities; Sales of household appliances: Sales of chemical products (excluding licensed chemical products); Retail of computer software, hardware, and auxiliary equipment; Software sales; Internet equipment sales: Sales of office equipment consumables; Sales of office supplies: Wholesale of cosmetics, technical services, technical development, technical consultation, technical exchange, technology transfer, and technology promotion; Retail of cosmetics.