Licensed projects: Import and export of goods (projects that require approval by law can only be carried out after approval by relevant departments, and specific business projects are subject to approval results) General projects: Wholesale of hardware products; Mold sales; Sales of machine tool functional components and accessories; Sales of instruments and meters; Sales of industrial automatic control system devices; Electronic product sales; Sales of metal products; Sales of mechanical equipment; Sales of electrical equipment; Sales of wind and power tools: Sales of packaging materials and products; Sales of rubber products; Sales of building materials; Sales of metal materials; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion (except for projects that require approval according to law, business activities can be carried out independently with a business license in accordance with the law)