General projects: Software development; Automotive parts research and development; Power distribution switch control equipment research and development; Motor and its control system research and development; Hardware product wholesale; Hardware product retail; Electronic product sales; Feather (velvet) and product sales; Clothing and apparel wholesale; Cosmetics Wholesale; Sales of machinery and equipment; Sales of furniture; Sales of plastic products; Sales of sanitary ceramics; Sales of sanitary ware; Sales; Wholesale of stationery; Sales of office supplies; Sales of outdoor supplies; Sales of daily necessities; Internet sales (except for the sales of commodities that require licenses); Sales of chemical products (excluding licensed chemical products); Construction machinery and equipment rental; Machinery and equipment rental; Sales of special machinery for tunnel construction; R& D of sanitary ware; R& D of biological feed (except for items subject to approval in accordance with the law, independent business activities shall be carried out with the business license in accordance with the law). Licensed items: Import and export of goods; Import and export of technology; Import and export agency (items that are subject to approval in accordance with the law can only be carried out after the approval of the relevant departments, and the specific business items are subject to the approval results).