Manufacturing of metal processing machinery; manufacturing of hardware products; retail of hardware products; manufacturing of environmental protection special equipment; sales of environmental protection special equipment; sales of metal materials; sales of non-ferrous metal alloys; sales of metal structures; manufacturing of metallurgical special equipment; sales of metallurgical special equipment; sales of lubricating oil; manufacturing of railway locomotive and rolling stock parts; sales of railway locomotive and rolling stock parts; manufacturing of material handling equipment; sales of material handling equipment; manufacturing of gears, gear reducers, and gearboxes; sales of gears, gear reducers, and gearboxes; sales of bearings, gears, and transmission components; manufacturing of high-performance fibers and composite materials; sales of high-performance fibers and composite materials; manufacturing of glass fiber and products; sales of glass fiber and products; processing of mechanical parts and components; sales of mechanical parts and components; metal cutting processing services; manufacturing of CNC machine tools; sales of CNC machine tools; labor services (excluding dispatched labor). Licensed items: Road cargo transportation (excluding hazardous goods).