The metal carving board is made of environment-friendly raw materials (the inner polyurethane layer is the same material as the inner insulation layer of refrigerators and air conditioners). It is non-toxic, odorless and pollution-free, giving the building green protection and decoration.The surface is a special layer of high-quality color embossed veneer metal plate, the middle layer is a hard high-density polyurethane foaming thermal insulation layer processed by flame retardant treatment, the bottom surface is to play the role of heat insulation and moisture protection of aluminum foil protective layer.Because the wallboard itself has heat preservation and insulation, waterproof and flame retardant, light seismic, convenient construction, sound insulation and noise reduction, green environmental protection, beautiful and durable, and because of its simple and practical plate assembly, not restricted by the seasonal environment, so the installation is very safe and convenient, suitable for all seasons.This innovative exterior wall thermal insulation decorative board highlights its absolute advantages.