The business scope includes licensed items: Import and export of goods; Technology import and export (projects that need to be approved according to law can only be operated after being approved by relevant departments, and the specific business items shall be subject to the approval results) General items: Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Research and development of hardware products; Machining of mechanical parts and components; Manufacturing of mechanical and electrical equipment; Manufacturing of metal fittings for construction; General equipment manufacturing (excluding special equipment manufacturing); Hardware products manufacturing; Manufacture of photovoltaic equipment and components; Sales of intelligent instruments; Sales of electronic products; Sales of electronic components and electromechanical components; Sales of metal products; Sales of forgings and powder metallurgy products; Sales of plastic products; Sales of rubber products; Mold sales; Sales of mechanical parts and components; Sales of photovoltaic equipment and components; Sales of power distribution switch control equipment; Wire and cable business; Maintenance of electronic and mechanical equipment (excluding special equipment); Lease of photovoltaic power generation equipment; General mechanical equipment installation services; Supply chain management services