General project: Import and export of goods; Technology import and export; Import and export agency; Internet sales (except for the sale of goods that need to be licensed); Sales of daily necessities; Sales of daily necessities; Sales of doors and windows; Packaging services; Sales of industrial textile products; Sales of needle textiles and raw materials; Needle textile sales; Sales of daily miscellaneous goods; Sales of mechanical equipment; Sales of rubber products; Rental services (excluding licensed rental services); Sales agent; Leather sales; Sales of specialized equipment for commercial, catering, and service purposes; Sales of metal packaging containers and materials; Sales of 3D printing basic materials; Sales of new energy vehicle battery swapping facilities; Sales of specialized machinery for agriculture, forestry, animal husbandry, animal husbandry, and fisheries; Sales of lightweight building materials; Sales of office equipment; Sales of clocks and timing instruments; Sales of toys, anime, and entertainment products; Sales of direct drinking water equipment (except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law)