Manufacturing of railway locomotive and rolling stock parts; manufacturing of high-speed rail equipment and parts; sales of specialized equipment, key systems and components for rail transit; manufacturing of mining machinery; manufacturing of intelligent basic manufacturing equipment; manufacturing of industrial robots; manufacturing of marine supporting equipment; manufacturing of general equipment (excluding special equipment manufacturing); manufacturing of specialized equipment (excluding licensed specialized equipment manufacturing); research and development of new materials technology; manufacturing of forgings and powder metallurgy products; technical services, technology development, technology consulting, technology exchange, technology transfer, technology promotion; installation services for general mechanical equipment; conference and exhibition services; import and export of goods; technology import and export; import and export agency.