The composite aluminum-plastic composite panel is composed of two materials (metal and non-metal) which are completely different in nature. It not only retains the main characteristics of the original constituent materials (metal aluminum, non-metal polyethylene plastic), but also overcomes the shortcomings of the original constituent materials. In addition, it has obtained many excellent material properties, such as luxury, colorful decoration, weather resistance, corrosion resistance, impact resistance, fire prevention, moisture resistance, sound insulation, heat insulation, shock resistance; light weight, easy processing and easy to handle installation And other characteristics. Therefore, it is widely used in various architectural decoration, such as ceiling, pillar, counter, furniture, telephone booth, elevator, storefront, billboard, factory wall material, etc., has become the three curtain walls (natural stone, glass curtain wall, metal The curtain wall) is a representative of the metal curtain wall. In developed countries, composite aluminum-plastic composite panels are also used in the manufacture of buses, trains, aircraft, ship sound insulation materials, design instrument cabinets, etc.