Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; sales of electronic products; research and development of household appliances; manufacturing of household appliances; sales of household appliances spare parts; sales of lighting appliances; manufacturing of lighting appliances; sales of metal products; wholesale of auto parts and accessories; retail of auto parts and accessories; manufacturing of auto parts and accessories; motorcycle spare parts Parts manufacturing; motorcycles and parts research and development; motorcycles and parts retail; motorcycles and parts wholesale; hardware product retail; hardware product manufacturing; hardware product research and development; electronic component retail; electronic component wholesale; integrated circuit chip and product manufacturing; integrated circuit chip and product sales; electronic component manufacturing; technology import and export; goods import and export.