The product has the advantages of light weight, high corrosion resistance and high pressure resistance, high precision, easy deformation and quick installation. The connection method adopts fast plug connection, and it is necessary to manufacture and install the materials and labor under the premise of satisfying the demand. The amount is minimal. As the shelf structure is novel and beautiful, the overall performance is good, widely used in large and small shopping malls, hotels and business conferences, celebrations, trade shows, mobile performances and all indoor hanging demand. Common specifications: 300 * 300mm, 400 * 400mm, 450 * 450mm, 500 * 500mm, 400 * 600mm, 520 * 760mm, 600 * 760mm.