... days 4.Fire A2 / B1 grade ,Water,heatproof PVDF /PE aluminium composite panel for exterior wall decoration 1.Aluminium Composite ... 5mmCore MaterialUnbroken LDPE or Fireproof A2 ,B1 Surface CoatingPVDF or PE 3.aluminium composite panel Material :1) Top:aluminum alloy ... sheet coated with polyester resin painting.4)Surface finish: PVDF / PE coated,brushed finish, mirror finish, wooden faced,marble faceed , ...