Business scope includes: General projects: Sales of metal materials; Sales of new metal functional materials; Pigment sales; Sales of metal products; Sales of rubber products; Mechanical equipment sales; Sales of synthetic materials; Sales of special equipment; Metal structure sales; Ink sales (excluding dangerous chemicals); Sales of building materials; Sales of construction machinery; Non-metallic minerals and products sales; Sales of steel products for construction; Sales of high-performance nonferrous metals and alloy materials; New material technology promotion service; Lubricating oil sales; Sales of building decoration materials; Sales of new membrane materials; Sales of high-performance sealing materials; Sales of thermal insulation materials; Sales of cement products; Wholesale of hardware products; Electronic product sales; Office supplies sales; Sales of household appliances; Needle textile sales; Sales of daily necessities; Wire and cable management; Sales of packaging materials and products; Electrical equipment sales; Sales of plastic products; New material technology research and development; Steel calendering; Metal material manufacturing; Metal structure manufacturing; Metal cutting service; Metal processing machinery manufacturing; Import and export of goods; Technology import and export