Production of road motor vehicles. General items: Manufacturing of special equipment (excluding licensed special equipment); Manufacturing of general valves and plugs (excluding special equipment); Fire protection technical services; Import and export of goods; Import and export of technology; Research and development of automotive parts; Manufacturing of general equipment (excluding special equipment); Engineering and technical research and experimental development; Sales of new automobiles; Wholesale of automotive parts; Sales of mechanical equipment; Sales of special equipment; Sales of pumps and vacuum equipment; Sales of hydraulic power machinery and components; Motor vehicle modification services; Sales of construction engineering machinery; Sales of generators and generator sets; Emergency rescue services; Safety consulting services; Technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; Data processing services; Consulting and planning services; General cargo warehousing services (excluding items requiring permits such as hazardous chemicals); Sales of fire-fighting equipment; Sales of security equipment; Repair of metal products; Repair of general equipment; Repair of special equipment; Flood control and drainage facility management; Municipal facility management; Environmental sanitation management (excluding environmental quality monitoring, pollution source inspection, and disposal of urban domestic waste, construction waste, and kitchen waste); Investment activities with own funds; Water pollution control; Environmental emergency treatment services (excluding environmental quality monitoring and pollution source inspection services); Domestic trade agency; Sales agency; Professional design services; Information technology consulting services; Software development; Wholesale of computer software and hardware and auxiliary equipment; Retail of computer software and hardware and auxiliary equipment; Manufacturing of intelligent unmanned aerial vehicles; Sales of intelligent unmanned aerial vehicles; Information system integration services; Manufacturing of environmental protection special equipment; Manufacturing of specialized water resource mechanical equipment.