Marble Laminate Aluminium Composite tile Front side: aluminum alloy sheet coated with fluorocarbon resin (PVDF) or polyester Resin (PE) WITH marble colors . Core: more broken-resistant polyethylene or fire-resistant polyethylene (PE) Rear side: aluminum alloy sheet (or coated with polyester resin) Dimensions: Panel thickness: Standard: 3mm,4mm Others: 1.8mm up to 5mm Aluminum skin thickness: 0.50 x 0.50mm 0.45 x 0.45mm 0.40 x 0.40mm 0.35 x 0.35mm 0.3 x 0.3mm 0.21 x 0.21mm 0.18 x 0.18mm 0.15 x 0.15mm 0.12 x 0.12mm 0.10 x 0.10mm Width: Standard width: 1,220mm Maximum width: 1,575mm Length: Standard length 2,440mm Maximum length: 6,000mm