Manufacturing of auto parts and accessories; wholesale of auto parts; retail of auto parts; R&D of auto parts; manufacturing of bearings, gears and transmission parts; sales of bearings, gears and transmission parts; sales of new energy vehicle electrical accessories; sales of mechanical parts and components; sales of non-ferrous metal alloys; sales of mechanical equipment; sales of metal materials ; Motorcycle spare parts manufacturing; Motorcycle and spare parts wholesale; Motorcycle and spare parts retail; Rubber product manufacturing; Rubber product sales; Plastic product manufacturing; Plastic product sales; Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; Import and export of goods; Import and export of technology; Import and export agency.