... Surface finish: treated with PVDF and PE resin rolling roasting coating Surface coating thickness: 30um Aluminum-alloy sheet thickness ... walls, ceilings, bathrooms, kitchens and balconies and shops door, billboards, signboards, tunnel and subway interiors Telephone booths, vehicle ... and industrial usage Quality standard: according to GB/T 17748-1999 and SGS KV-07-04992X standards PE and PVDF coating ...