... noise ,easy installation ,anti-earthquake etc. 1) dimensions of Aluminum Composite Panela) thickness:3mm,4mmb) width:1220mmc) length:2440mm,3050mm, ... surface and high strength2) excellent heat insulation,sound insulation,fire-resistance,acid-resistance,alkali-resistance,weatherproofness and non-resonance3 ... ,vehicle bodies,yachts,industrial usage etc. 3mm Aluminum composite panel use for engraving