PU insulation panel: 1.Double side material:colored galvanized steel 2.Inside core material:PU 3.Guarantee:15-20 years The details as bellows:CommodityPu (polyurethane) heat insulation wall panelMaterialDouble side color galvanized steel +polyurethane foamStandard wide 1000mmLengthNo length limit , cut as your orderCovering steel thickness0.2mm-0.8mmPolyurethane foam thickness50mm/75mm/100mm/ ...