Auto parts research and development; Hardware product development; Mechanical equipment research and development; Research and development of metal products; Valve and cock development; New material technology research and development; Sales of generators and generator sets; Technical service, technology development, technology consultation, technology exchange, technology transfer, technology dissemination; Mechanical parts, parts sales; Hardware products retail; Hardware products wholesale; Auto parts wholesale; Auto parts retail; Instrument sales; Sales of metal products; Steam turbine and auxiliary machinery sales; Labor services (); Battery parts sales; Battery sales (except for items subject to approval according to law, independently carry out business activities according to law with business licenses). Permitted project: Road motor vehicle production