... used interior and exterior wall, roofing. PVDF aluminium sandwich panel specifications:Thickness: 6mm-200mmThickness of aluminum sheets: 0.5mm-3mmStandard size: 1,220 ... 24 hours without any change..8)Construction convenience: with the aluminum alloy keel, the installation will be convenient, fast, both ... various directions, so it’s with stronger antiseismic ability PVDF aluminum sandwich panel