General items: Technical services, technical development, technical consultation, technical exchange, technical transfer, technical promotion; Sales of chemical products (excluding licensed chemical products); Sales of special chemical products (excluding hazardous chemicals); Sales of daily chemical products; Sales of coatings (excluding hazardous chemicals); Sales of packaging materials and products; Sales of daily necessities; Wholesale of hardware products; Sales of metal products; Sales of labor protection articles; Sales of personal hygiene articles; Sales of electronic products; Sales of mechanical equipment; Sales of new membrane materials; Sales of plastic products; Sales of lubricating oil; Sales of electronic special materials; Enterprise management consulting; Graphic design and production; Industrial design services; Network technical services; Goods import and export; Internet sales (excluding goods that require permission for sales) (except for items that must be approved in accordance with the law, business activities shall be carried out independently in accordance with the law with a business license).