General equipment manufacturing (excluding special equipment manufacturing); mechanical and electrical equipment manufacturing; industrial design services; general equipment repair; special equipment repair; mechanical equipment sales; mechanical and electrical equipment sales; mechanical parts and components sales; auto parts wholesale; auto parts retail; smart vehicle equipment sales; battery spare parts Parts sales; special equipment sales; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; leasing services (excluding licensed leasing services); machinery and equipment leasing; domestic container cargo transportation agency; purchasing agency services; consulting and planning services; warehousing equipment leasing services; supply chain management Services; project planning and public relations services; socioeconomic consulting services; non-residential real estate leasing; sales of metal chains and other metal products; sales of building materials; retail of hardware products; wholesale of hardware products; research and development of hardware products; manufacturing of hardware products; sales of chemical products (excluding licensed chemical products); labor protection Product sales; manufacturing of metal daily necessities; manufacturing and sales of: small lifting and transport tools and their spare parts (excluding special equipment and those with special national management regulations), hand tools, wire ropes and their products, pneumatic power tools and their spare parts, motorcycle parts and their accessories (all excluding engines); import and export of goods. (Except those prohibited by laws and administrative regulations in the above business scope; operations restricted by laws and administrative regulations must obtain a license).