Wholesale of auto parts; retail of auto parts; manufacturing of motorcycle parts; wholesale of motorcycles and parts; retail of motorcycles and parts; R&D of motorcycles and parts; manufacturing of auto parts and accessories; remanufacturing of auto parts; R&D of auto parts; sales of steam turbines and auxiliary equipment; manufacturing of steam turbines and auxiliary equipment; manufacturing of general parts; manufacturing of mechanical parts and parts; battery parts Production; sales of battery spare parts; retail of hardware products; wholesale of hardware products; research and development of hardware products; manufacturing of hardware products; sales of metal products; research and development of metal products; sales of communication equipment; sales of mechanical parts and components; manufacturing of plastic products; sales of plastic products; manufacturing of metal processing machinery; manufacturing of special equipment (excluding manufacturing of licensed professional equipment); import and export of technology; import and export of goods.