Manufacturing of hardware products; wholesale of hardware products; retail of hardware products; manufacturing of metal parts for construction; sales of metal parts for construction; manufacturing of auto parts and accessories; wholesale of auto parts; retail of auto parts; manufacturing of motorcycle parts; wholesale of motorcycles and parts; retail of motorcycles and parts; manufacturing of glasses; sales of glasses (excluding contact lenses); kitchenware and sanitary ware Wholesale of daily necessities; retail of kitchen utensils, sanitary ware and daily necessities; manufacturing of architectural decoration, plumbing parts and other construction metal products; sales of metal chains and other metal products; manufacturing of metal chains and other metal products; sales of metal products; production of furniture spare parts; sales of furniture spare parts; manufacturing of forgings and powder metallurgy products; sales of forgings and powder metallurgy products; Manufacturing of metal materials; sales of metal materials; sales of new metal functional materials; manufacturing of lightweight building materials; sales of lightweight building materials; sales of building materials; manufacturing of building waterproofing membrane products; sales of building waterproofing membrane products; sales of metal matrix composite materials and ceramic matrix composite materials; manufacturing of plastic products; sales of plastic products; sales of engineering plastics and synthetic resins; nonferrous gold Manufacturing of metal alloys; sales of nonferrous metal alloys; sales of high-performance nonferrous metals and alloy materials; manufacturing of glass fiber reinforced plastic products; sales of glass fiber reinforced plastic products; sales of building decoration materials; sales of anticorrosive materials; manufacturing of artificial panels; sales of artificial panels; sales of electronic products; manufacturing of smart home consumer equipment; sales of smart home consumer equipment; and sales of outdoor products. Licensed items: import and export of goods; import and export of technology.