Research and development of motors and control systems; research and development of automobile parts; research and development of metal products; research and development of intelligent robots; research and development of emerging energy technologies; research and development of mechanical equipment; research and development of motorcycles and parts; research and development of new material technology; manufacturing of off-highway recreational vehicles and spare parts; sales of off-highway recreational vehicles and spare parts; manufacturing of mopeds; sales of electric bicycles; wholesale of automobile spare parts; manufacturing of motorcycle spare parts; wholesale of motorcycles and spare parts; manufacturing of sporting goods and equipment; wholesale of sporting goods and equipment; agricultural machinery Machinery manufacturing; Sales of machinery and equipment; Manufacturing of metal tools; Sales of metal tools; Manufacturing of hardware products; Wholesale of hardware products; Manufacturing of pneumatic and electric tools; Sales of pneumatic and electric tools; Manufacturing of specialized machinery for agriculture, forestry, animal husbandry, sideline and fishery; Sales of specialized machinery for agriculture, forestry, animal husbandry, sideline and fishery; Sales of silviculture and wood and bamboo logging machinery; Manufacturing of silviculture and wood and bamboo logging machinery; Sales of agricultural machinery; Manufacturing of metal processing machinery; Manufacturing of metal daily necessities; Sales of metal products; Technology import and export; Import and export of goods.