... , Standard size(width x Length) : 1,220 x 2,440mm2, Aluminum composite panel thickness: 2, 3, 4, 5 , 6 mm. ( 2mm, 3mm for ... interior use, 4mm, 5mm, 6mm for exterior used) 3, Aluminum alloy sheet thickness ... fluor-carbon resin (PVDF) or polyester resin (PE) roasting painting. 2, Core: nontoxic polyethylene. low denisty , fireproof white plastic material3, The ...