General project: Sales of construction machinery; Leasing of construction machinery and equipment; Sales of specialized machinery for agriculture, forestry, animal husbandry, sidelines, and fisheries; Agricultural machinery sales; Special equipment repair; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Engineering and technical research and experimental development; Sales of machine tool functional components and accessories; Electrical equipment repair; Sales of generators and generator sets; Sales of synthetic materials; Sales of power electronic components; Personal Internet live broadcast service; Internet sales (except for the sale of goods that need to be licensed); Import and export agency; Information consulting services (excluding licensed information consulting services); Information technology consulting services; Used car brokerage; Motor vehicle appraisal and evaluation; Mechanical equipment research and development; Mechanical equipment leasing; Sales of gas compression machinery; Sales of mechanical parts and components; Recycling of renewable resources (excluding productive waste metals); Sales of electronic products; Sales of lightweight building materials; Sales of metal tools; Special equipment sales; Sales of specialized machinery for tunnel construction; Sales of hydraulic power machinery and components; Sales of mechanical and electrical equipment; Sales of pneumatic and electric tools; Sales of industrial robots; Sales of mining machinery; Sales agent; Trade brokerage; Wholesale of hardware products; Import and export of goods; Technology import and export; Sales of mechanical equipment; Sales of metal materials; Sales of renewable resources. (Except for projects that require approval according to law, business activities shall be conducted independently based on the business license in accordance with the law)