Various engineering construction activities; tourism business; electrical installation services; intelligent building system design; road motor vehicle production; special equipment manufacturing General projects: engineering and technology research and experimental development; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; manufacturing of special equipment for environmental protection; sales of special equipment for environmental protection; door and window manufacturing and processing; metal material manufacturing; metal material sales; metal sign manufacturing for transportation and public management; sales of signs for transportation and public management; mold manufacturing; mold sales; general equipment manufacturing (excluding special equipment manufacturing); mechanical equipment sales; transportation facility maintenance; environmental sanitation public facilities installation services; domestic waste treatment equipment manufacturing Sales of household waste treatment equipment; manufacturing of special equipment for traffic safety and control; software development; leasing of machinery and equipment; manufacturing of metal structures; sales of metal structures; sales of metal products; research and development of metal products; manufacturing of hardware products; sales of IoT equipment; research and development of IoT technology; IoT technical services; Internet sales (except for the sale of goods requiring licenses); sales of artificial intelligence hardware; manufacturing of smart home consumer equipment; sales of smart home consumer equipment; manufacturing of security equipment; sales of security equipment; campground services; sales of outdoor supplies; tourism development project planning consulting ; Tourist attraction management; Landscaping project construction; Container manufacturing; Container sales; Furniture manufacturing; Furniture sales; Import and export of goods; Technology import and export; Import and export agency; Domestic trade agency; Information technology consulting services; Industrial engineering design services; Advertising design, agency; Professional design services; Leasing services (excluding licensed leasing services); Sales of first-class medical devices; Sales of second-class medical devices; Repair of special equipment; Sales of insulation materials; Leasing of photovoltaic power generation equipment; Sales of solar thermal utilization equipment; Earthwork construction; Residential water and electricity installation and maintenance Services; sales of non-metallic minerals and products; manufacturing of bamboo products; sales of building decoration materials; manufacturing of smart vehicle equipment; sales of smart vehicle equipment; sales of synthetic materials; sales of glass fiber reinforced plastic products; sales of plastic products; research and development of new material technology; general equipment repair; electronic components Parts retail; sanitary ware sales; daily necessities sales; household appliances retail; auto parts wholesale; auto parts retail; automobile sales; new energy vehicle sales; new energy vehicle electrical accessories sales; tram manufacturing; motor manufacturing; auto parts and accessories manufacturing; lighting sales