... 3.cycling use coated PU sandwich panel for wall:Steel Thickness0.2~ ... PU sandwich,(3)the bottom layer is also steel sheetRockwool density30-50(kg/m³),etccolorblue,whitegrey,or other colors .PartsSteel line for ... to the large size factory buildings,storages, exhibition halls, gymnasiums ,etcPackingPacked by shipping Container or according to your demandsProducts&advantage: 1)Wall panel:2)Roof panel ...