R&D of auto parts; manufacturing of auto parts and accessories; R&D of motorcycles and parts; mechanical parts and parts processing; sales of mechanical parts and parts; general parts manufacturing; motorcycle parts manufacturing; general equipment manufacturing (excluding special equipment manufacturing); technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; engineering and technology research and test development Exhibition; sales of wind turbines and parts; manufacturing of high-speed rail equipment and accessories; manufacturing of bearings, gears and transmission parts; sales of high-speed rail equipment and accessories; research and development of metal products; sales of metal products; manufacturing of fasteners; sales of fasteners; sales of mechanical equipment; metal surface treatment and heat treatment processing; quenching processing; technology import and export; goods import and export; import and export agency; solar power generation technical services. Licensed projects: power generation business, power transmission business, power supply (distribution) business.