Alubond, Aluminum composite panel, Alucobond panel, , ACP, ACM, aluminum composite material,Panel Compuesto De Aluminio ... composite panel thickness: 2, 3, 4, 5 , 6 mm. ( 2mm, 3mm for interior use, 4mm, 5mm, 6mm for exterior used) 3, Aluminum alloy sheet ... PE) roasting painting. 2, Core: nontoxic polyethylene. low denisty , fireproof white plastic material3, The back side: aluminum alloy sheet coated ...