3-layer coextruded, Surface layer is modified PVC. Core layer is foam high polymer. Width: 1130or 1350mm Thickness: 2.0, 2.5,3mm It's a ... and corrosionSpecification:Width : 1130mm or 1350mm (fixed)Thickness : 2.0mm, 2.5mm, 3.0mm, 4mm, 5mmLength: optional or according the length of ... light blue, grey, terrocotta, transparent.Tile type: corrugated or waved. 3-layer heat insulation UPVC roof sheet