Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; communication equipment manufacturing; auto parts and accessories manufacturing; auto parts wholesale; motorcycle parts manufacturing; motorcycles and parts wholesale; motorcycle and parts research and development; moped manufacturing; moped bicycles, scooters and parts sales; agriculture, forestry, animal husbandry and fishery machinery parts manufacturing; agriculture, forestry, animal husbandry and fishery machinery parts sales; motor manufacturing; mold manufacturing; mold sales; rubber products manufacturing; rubber product sales; plastic products manufacturing; plastic products manufacturing. Sales of products; manufacturing of household appliances; sales of household appliances; manufacturing of special equipment for environmental protection; sales of special equipment for environmental protection; research and development of metal products; sales of metal products; sales of daily necessities; sales of electronic products; sales of synthetic materials; sales of metal materials; sales of instruments and meters; research and development of new material technology; information technology consulting services; industrial design services; professional design services; advertising design, agency; graphic design; import and export of goods; import and export of technology; general parts manufacturing; research and development of mechanical equipment; sales of mechanical equipment.