Aluminum foil heat insulaton material for roof insulation Specifications1. Bubble diameter: 10, 20, 25, 35mm2. Bubble height: 3, 4, 6, 7, 8, 9, 15mm3. Pure Aluminum/Metallic Aluminum thickness: 7 micron/12 micron.4. Aluminum foil structure: PET+Al+PE(antioxidative, anticorrosion, scratch-resistant)5. Aluminum foil can be laminated with..