Auto parts and accessories manufacturing; Mechanical parts and parts processing; Mechanical parts and parts sales; Agriculture, forestry, animal husbandry and fishery machinery accessories manufacturing; Agriculture, forestry, animal husbandry and fishery machinery accessories sales; Motorcycle spare parts manufacturing; Motorcycle and spare parts retail; Marine supporting equipment manufacturing; Hardware product manufacturing; Construction and decoration material sales; Construction metal parts manufacturing; Construction metal parts sales; Intelligent vehicle equipment manufacturing; Intelligent vehicle equipment sales; Electronic components manufacturing; Electronic product sales Sales; manufacturing of generators and generating sets; sales of generators and generating sets; sales of wind turbines and parts; wind power technical services; manufacturing of bearings, gears and transmission parts; manufacturing of CNC machine tools; sales of CNC machine tools; manufacturing of service consumption robots; sales of service consumption robots; research and development of intelligent robots; manufacturing of special operation robots; sales of intelligent robots; production of first-class medical devices; sales of first-class medical devices; sales of second-class medical devices.