Manufacturing of mechanical and electrical equipment; sales of mechanical and electrical equipment; maintenance of electronic and mechanical equipment (excluding special equipment); repair of electrical equipment; manufacturing of power transmission and distribution monitoring and control equipment; sales of power transmission and distribution monitoring and control equipment; research and development of power distribution switch control equipment; manufacturing of power distribution switch control equipment; sales of power distribution switch control equipment; transformers, rectifiers and electrical Sensor manufacturing; wire and cable management; metal product R&D; metal material manufacturing; metal product sales; mechanical equipment R&D; special equipment manufacturing (excluding licensed professional equipment manufacturing); general equipment manufacturing (excluding special equipment manufacturing); mechanical equipment sales; instrumentation manufacturing; instrumentation sales; mold manufacturing; mold sales; electrical accessories Manufacturing of accessories; sales of electrical accessories; sales of electronic products; wholesale of computer software, hardware and auxiliary equipment; retail of computer software, hardware and auxiliary equipment; software development; software sales; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; import and export of goods; import and export of technology; cloud computing equipment technical services; cloud computing equipment Equipment manufacturing; cloud computing equipment sales; Internet data services; computer software, hardware and peripheral equipment manufacturing; data processing and storage support services; computer and communication equipment leasing; computer system services; big data services; information system operation and maintenance services; information technology consulting services; information system integration services; artificial intelligence application software development; intelligence Can control system integration; information security equipment sales; domestic trade agency; standardization services; engineering management services; electronic component manufacturing; electronic component wholesale; educational consulting services (excluding education and training activities involving licensing approval); information consulting services (excluding licensing information consulting services); research and development of intelligent robots; generators and power generation Sales of generator sets; manufacturing of generators and generator sets; manufacturing of electronic components and electromechanical components and equipment; sales of electronic components and electromechanical components and equipment; Internet sales (except for the sale of goods requiring licenses); wholesale of motorcycles and spare parts; retail of motorcycles and spare parts; manufacturing of motorcycle spare parts; wholesale of automobile spare parts; retail of automobile spare parts; automobile spare parts Manufacturing of components and accessories; manufacturing of smart vehicle equipment; sales of smart vehicle equipment; sales of communication equipment; manufacturing of mobile communication equipment; sales of mobile communication equipment; manufacturing of communication equipment; sales of communication equipment; sales of gifts and flowers; sales of daily necessities; manufacturing of household appliances; sales of household appliances; production of chemical products (excluding licensed chemical products); chemical industry Product sales (excluding licensed chemical products); sales of knitted textiles; sales of office supplies; sales of furniture spare parts; sales of plastic products; sales of rubber products; sales of building materials; sales of building decoration materials; sales of lighting fixtures; network technology services; industrial Internet data services; Internet equipment sales; network equipment sales; marketing planning. Licensed projects: manufacturing of wires and cables; installation, modification and repair of special equipment; manufacturing of special equipment; installation, maintenance and testing of power transmission, power supply and receiving power facilities; Type II value-added telecommunications business; Type I value-added telecommunications business; Internet information services; Internet live broadcast technical services; Type II monitoring chemical operations; Type II medical device production.