Manufacturing of household appliances; research and development of household appliances; sales of household appliances spare parts; research and development of automobile parts; manufacturing of automobile parts and accessories; retail of automobile parts; instrument manufacturing; sales of instruments and meters; research and development of motorcycles and parts; manufacturing of motorcycle parts; manufacturing of industrial robots; sales of industrial robots; manufacturing of special operation robots; manufacturing of electric motors; manufacturing of general equipment (excluding manufacturing of special equipment); manufacturing of pumps and vacuum equipment; manufacturing of mechanical and electrical equipment; research and development of motors and their control systems; import and export of goods; import and export of technology; manufacturing of refrigeration and air-conditioning equipment; sales of refrigeration and air-conditioning equipment.