Manufacturing of automotive parts and accessories; wholesale of automotive parts; retail of automotive parts; sales of automobiles; sales of new energy vehicles; sales of special equipment; sales of metal packaging containers and materials; manufacturing of metal packaging containers and materials; spray coating processing; research and development of metal products; sales of metal products; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; import and export of goods; manufacturing of Class I medical devices; sales of Class I medical devices; sales of Class II medical devices; software development for network and information security; earth and stone work construction; solar power generation technical services; sales of generators and generator sets; retail of hardware products; sales of mobile communication equipment; motor vehicle repair and maintenance; sales of mechanical equipment; sales of construction machinery; information consulting services (excluding licensed information consulting services). Licensed items: manufacturing of road motor vehicles; manufacturing of special equipment; manufacturing of Class II medical devices; manufacturing of Class III medical devices; road freight transport (excluding dangerous goods); basic telecommunications services.