paint of film-coated surface, strong adhesive force, antifriction and corrosion protection, consistent and durable color slight weight, light ceiling loading, excellent rigidity, convenient loading and unloading, used to shape ceiling board. specification gloss thickness: 15/18 micro coil thickness: from 0.06 mm to 0.50mm coil width: 700mm aluminium alloy: aa1100 application mainly used as the ceiling of airport and subway building, hotel, office, college, hospital, medicine workshop, residence.