The metal exterior wall thermal insulation decorative board is a decorative board that has the characteristics of beauty, light weight, fire prevention, heat preservation, sound insulation, corrosion resistance and easy construction. It has been widely used in the United States and Japan. Metal carved exterior wall decorative panels are mainly used as environmental protection public toilets, activity rooms, guard booths, kiosks, guards and other building interior and exterior wall materials in China, and gradually began to be used on building exterior walls. It is an ideal building material that meets the national environmental protection requirements. . Metal carved exterior wall decorative panels are divided into single-sided and double-sided 2.5cm, 3.5cm, 4.0cm, 4.5cm, 5.0cm, 6.0cm, 7.0cm thick and so on.