Color Coated Brushed Aluminum Coil For Aluminium Channel Letter Trim Edge Roll Detailed Photos Certifications Product application 1. For constructional exterior curtain walls, aluminum composite panel. 2. Widely used in exhibition, stores, offices, banks, hotels, restaurants and apartments. 3. Decorative renovation for storey-added old buildings, facades, roofing. 4. Indoors decoration for interior walls, ceilings, bathrooms, kitchens, balconies and subway. 5.