Roof panel: 0.5mm pre-painted galvanized steel sheet on both sides + 50mm PU sandwich panel.Wall panel:. 0.5mm pre-painted galvanized steel sheet on both sides.2. 50mm PU sandwich panel.WW-Canada-MLTY-25.7.29$112.14PriceCountryCanada SHIPPING INFOFOB Dalian port 7 x 40HQ containers