Special equipment manufacturing; road motor vehicle production; import and export of goods; technology import and export; import and export agency general items: technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; Internet of Things technology research and development; motorcycle parts research and development; hardware product research and development; mechanical equipment research and development; motorcycle parts and accessories manufacturing; moped manufacturing; off-highway recreational vehicle and spare parts manufacturing; bicycle manufacturing; hardware product manufacturing; electric motor manufacturing; mechanical parts and parts processing; other electronic device manufacturing; electronic component manufacturing; electronic special equipment manufacturing; toy manufacturing; Wholesale of motorcycles and spare parts; sales of mopeds, scooters and spare parts; sales of off-highway recreational vehicles and spare parts; sales of electric bicycles; wholesale of bicycles and spare parts; wholesale of hardware products; sales of mechanical parts and spare parts; battery sales; wholesale of automobile spare parts; electric vehicle charging Infrastructure operation; sales of special equipment; sales of mechanical equipment; sales of household appliances; sales of household appliance spare parts; sales of toys; electric bicycle repair; bicycle repair; household appliance installation services; general mechanical equipment installation services; electronic and mechanical equipment maintenance (excluding special equipment)