Manufacturing of auto parts and accessories; retail of auto parts; wholesale of auto parts; manufacturing of motorcycle parts; wholesale of motorcycles and parts; retail of motorcycles and parts; import and export of goods; import and export of technology; manufacturing of agricultural, forestry, animal husbandry and fishery machinery parts; sales of agricultural, forestry, animal husbandry and fishery machinery parts; sales of gears and gear reducers and gearboxes; manufacturing of gears and gear reducers and gearboxes; sales of forgings and powder metallurgy products; manufacturing of forgings and powder metallurgy products