The sandwich color steel plate is fast to install. The composite board has light weight, splicing installation and free cutting characteristics, which determines its simple installation, which can greatly improve the efficiency and save the construction period. The sandwich color steel plate is light in weight and reduces the structural cost. Durable and fire-resistant. The surface material and thermal insulation material of the color composite sandwich panel are non-combustible materials, which can fully meet the requirements of fire protection regulations. Beautiful appearance, the clear lines of the profiled steel plate can be up to dozens of colors, and meet the needs of any style of building to achieve a satisfactory effect. Thermal insulation. The commonly used thermal insulation materials of the composite board are: polystyrene, rock wool, glass fiber wool, polyurethane, etc. These materials have low thermal conductivity. So it is widely used in modern architectural decoration.