Import and export of goods; Import and export of technology; Import and export agency; Road freight transport (excluding dangerous goods). General projects: Manufacturing of building decoration, water heating pipeline parts, and other metal products for construction use; Road freight transport of ordinary freight vehicles with a total mass of 4.5 tons and below (excluding network freight and dangerous goods); Manufacturing of synthetic materials (excluding hazardous chemicals); Manufacturing of new membrane materials; Manufacturing of ecological environment materials; Production of refractory materials; Manufacturing of lightweight building materials; Manufacturing of new building materials (excluding hazardous chemicals); Manufacturing of hardware products; Sales of building materials; Sales of new membrane materials; Sales of building decoration materials; Sales of leather products; Sales of lightweight building materials.