>>materials: high-quality aluminum coils: adopted from southwest aluminum (group) co, ltd of china, lacquer coating: fluorocarbon (ppg or coatings from becker industrial-china paint limited) or polyester pe: excellent elastic polyethylene endures bend without broken, high polymer membrane: adopted from usa dupont. >>structures: 1) front side: aluminum roll coated with fluorocarbons or polyester. the front side is paved protective film. 2) core: pe 3) back side: aluminum roll coated with polyester >>dimensions: standard size: 1220/1250x2440x3mm, 1220/1250x2440x4mm non standard width: 1000mm, 1500mm non-standard length: as your request. aluminum skin thickness: 0.03-0.5mm for face or back side aluminum composite panel thickness: 0.9mm,1mm,2mm, 3mm, 4mm, 5mm, 6mm >>packing: export standard wooden pallet or in bulk