... , Light weight 3, Easy installation 4, ISO90 Foam sandwich panelProduct DescriptionHeat Insulation / Inflaming RetardingThickness: 50mm-200mmWidth ... panel: 950mm 980mmLengthAccording to customer' s requestmaterialsPolystyrene foam board(EPS), Color steel sheet,Rock woolStructureUpper and ... layer: Color steel sheetMiddle: polystyrene foam board or polyurethane foam boardThicknessColor steel sheet: 0.3-0 ...