General Items: Information Technology Consulting Services; Metal surface treatment and heat treatment processing; Mechanical and electrical equipment manufacturing; General equipment manufacturing (excluding special equipment manufacturing); Repair of electrical equipment; Manufacturing of electronic (gas) physical equipment and other electronic equipment; Intelligent basic manufacturing, equipment manufacturing; Manufacturing of special equipment (excluding licensed professional equipment manufacturing); Maintenance of electronic and mechanical equipment (excluding special equipment); Internet sales (except for the sale of goods that require a license); Sales of machinery and equipment; Sales of mechanical and electrical equipment; Sales of electrical equipment; Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; Industrial design services; Sales of industrial control computers and systems; Wholesale of electronic components; Sales Agent. (In addition to licensed business, it can independently operate projects that are not prohibited or restricted by laws and regulations in accordance with the law)