The surface layer uses alloy aluminum sheet/color-coated aluminum sheet, with a rigid polyurethane (PU) foam core material in an integrated composite molding process. The aluminum sheet is lightweight, corrosion-resistant, oxidation-resistant, and has a smooth and beautiful appearance; the PU core material has excellent thermal insulation performance, is closed-cell and moisture-proof, and has stable strength. The entire panel is fireproof, heat-insulating, lightweight, and easy to install, and is widely used in building exterior walls, roofs, refrigerated truck bodies, industrial equipment insulation covers, and other applications.
