1.Easily curved or grooved in site, 2.Recycled core & sheet, aluminum alloy 3.Corrugated structure inside, 4.Max size ... Corrugated Panel FeaturesDurable adhesive performance. Water-wave structure of aluminum core and curve shaped of interfacial bonding with front and back ... sheetBack: 0.8, 0.6 0.4mm Aluminum sheetCorrugated sandwich core: 0.3,0.2mm Aluminum coil Core thickness: 4.6, 8.6mm