Manufacturing of ovens, furnaces and electric furnaces; manufacturing of general parts and components; manufacturing of general equipment (excluding manufacturing of special equipment); manufacturing of mining machinery; manufacturing of special equipment for oil drilling; manufacturing of trams; manufacturing of auto parts and accessories; remanufacturing of auto parts; repair of general equipment; repair of special equipment; maintenance of transportation facilities; sales of first-class medical devices; sales of second-class medical devices; sales of machinery and equipment; wholesale of automobile parts and accessories; complete new energy vehicles Sales; sales of new energy vehicle electrical accessories; wholesale of motorcycles and spare parts; wholesale of computer software, hardware and auxiliary equipment; sales of communication equipment; sales of mechanical parts and components; sales of automobile decorative supplies; sales of mining machinery; sales of ovens, furnaces and electric furnaces; sales of office equipment and consumables; sales of special equipment for oil drilling; sales of special equipment; car sales; installation services of environmental sanitation and public facilities; motor vehicle repair and maintenance; import and export of goods. Licensed projects: production of road motor vehicles; manufacturing of special equipment; operation of third-class medical devices.