Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion, auto parts and accessories manufacturing, auto parts retail, auto parts wholesale, auto parts research and development, motorcycle parts manufacturing, motorcycles and parts wholesale, motorcycles and parts retail, general equipment manufacturing (excluding Special equipment manufacturing), special equipment manufacturing (excluding licensed professional equipment manufacturing), mechanical equipment sales, mechanical equipment research and development, high-speed rail equipment and accessories manufacturing, high-speed rail equipment and accessories sales, electronic special materials research and development, electronic product sales, household appliance manufacturing, household appliance sales, technology import and export, goods import and export