Manufacturing of non-ferrous metal alloys; non-ferrous metal rolling processing; manufacturing of metal parts for construction; manufacturing of metal products for safety and fire protection; manufacturing of non-metallic mineral material forming machinery; manufacturing of casting machinery; manufacturing of power facilities and equipment; manufacturing of power electronic components; manufacturing of communication equipment; sales of anti-corrosion materials; sales of metal materials; non-ferrous metal casting; sales of high-performance non-ferrous metals and alloy materials; import and export of goods; import and export of technology; manufacturing of automobile parts and accessories; manufacturing of motorcycle parts and accessories; manufacturing of hydraulic power machinery and components; manufacturing of machinery for construction engineering