Upper and lower layer: color steel board ,Thickness from 0.2-0.8mm Insulation material:,EPS( Density: 5-20kg/m3),rock wool£¨Density:100-120kg//m3£©, PU Thickness of core materials: EPS£¨50mm ,75mm ,100mm ,150mm ,200mm£©, rock wool(50-125mm) Width:950mm-1200mm Length: as required Color: as required (RAL color). Package bundles with protecting films or water-proof kraft paper or as required.