Sales of special instruments for teaching; sales of instruments and meters; sales of supply instruments and meters; retail of auto parts and accessories; wholesale of auto parts and accessories; sales of industrial robots; sales of communication equipment; wholesale of motorcycles and spare parts; information system integration services; Internet of Things application services; Internet of Things equipment sales; wire and cable management; professional Design services; sales of photovoltaic equipment and components; sales of consumer service robots; sales of electronic vacuum devices; sales of generators and generator sets; sales of agricultural, forestry, animal husbandry and fishery machinery accessories; sales of electronic components and electromechanical components and equipment; wholesale of hardware products; sales of metal products; computer and office equipment maintenance; loading and unloading; machinery Sales of motor vehicle charging; sales of railway transportation infrastructure; sales of office equipment; sales of charging piles; sales of smart on-board equipment; sales of radio, film and television equipment; sales of agricultural machinery; domestic trade agency; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; sales of fire-fighting equipment; electric Operation of automobile charging infrastructure; sales of plug-in hybrid special engines; automobile sales; Internet sales (except for the sale of goods requiring licenses); wholesale of computer software, hardware and auxiliary equipment; sales of special labor protection supplies; sales of electrical machinery equipment; sales of teaching models and teaching aids; installation of industrial automatic control systems Sales of equipment; sales of intelligent robots; sales of electronic measuring instruments; sales of radio and television transmission equipment; sales of electrical equipment; wholesale of stationery; sales of mechanical parts and components; sales of labor protection supplies; sales of new energy vehicle production and testing equipment; sales of electronic products; computer system services; sales of mechanical equipment; Sales of security equipment; sales of electrical equipment; software development; Internet of Things technical services; Internet of Things technology research and development; wholesale of electronic components; sales of railway transportation equipment; sales of mechanical and electrical equipment; software sales; integrated circuit design; network and information security software development; retail of motorcycles and spare parts; research and development of emerging energy technologies ;Sales of office equipment consumables;Retailing of computer software, hardware and auxiliary equipment;Manufacture of automotive decorative products;Machine parts and parts processing;Automotive parts research and development;Other special equipment manufacturing;General equipment manufacturing (excluding special equipment manufacturing);Automobile wheel hub manufacturing;Automotive parts and accessories manufacturing;Industrial automatic control system Manufacturing of system equipment; manufacturing of instruments and meters; manufacturing of supply instruments and meters; manufacturing of special equipment for electrical machinery; manufacturing of electrical instruments and meters; manufacturing of electrical equipment; manufacturing of models and teaching aids for teaching; manufacturing of special instruments for teaching; import and export of goods; road cargo transportation (network freight); road cargo transportation (excluding dangerous goods)