Double-gou flat-textured exterior wall thermal insulation metal embossed panels and metal exterior wall fire-resistant decorative panels are made by using aluminum-zinc steel coil, which is not processed through a metal embossing machine (surface smooth, without浮雕 patterns) and directly fed into the cold bending forming machine. While forming the ends with insertion sockets, two middle grooves are also formed on the panel surface. These are then used as fire-resistant, insulating, and soundproofing boards for exterior wall decoration and thermal insulation. The panels are primarily installed on exterior walls, giving the appearance of painted wooden strips after completion, which is highly aesthetic. This polyurethane thermal insulation sandwich panel is widely used in exterior wall decoration of buildings, kiosks, dry-hung insulating and soundproofing walls, and fire-resistant thermal insulation for light steel villas.