General items: Sales of non-ferrous metal alloys: Sales of lightweight building materials:
Sales of metal materials: sales of building decoration materials: high-performance non-ferrous metals
And alloy material sales: building materials sales: new material technology research and development:
Sales of new metal functional materials: Internet sales: Packaging services: Sales of molding materials for casting: Surface
Sales of functional materials: Sales of high-performance sealing materials: Hardware products zero
Sales: Metal Accessories for Construction Sales: Metal Products Sales: Furniture Retail Sales
Piece Sales: Furniture Sales: Furniture Installation and Repair Services. Licensed items: Residential interior decoration and decoration.