... foam panel for roof 1.Light Weigt,Economic 2Waterproof,fireproof,insulation 3.Low thermal conductivity Sandwich panel suppliers in China ... 1 Brief induction:Sandwich Panel is composed by three layers, ... Thickness: 0.2mm-0.8mmWidth: 960mmMaterial: color-coated panel/zinc plate,Alu-Zinc steel sheetSurface: LDPE Guard Filmcore ...