... , resist over 80% external heat resist thermal AL /fire-retardant double bubble/ AL AL/Bubble+Bubble/AL AL0. ... and toxicity, environmentally- friendly; 2.Light, soft, dust free, fire retardant, easy to install; 3.Heat reflection, heat insulation, ... sound insulation, anti-radiation, anti-vibration, and shielding; 4.Moisture barrier, sun-proof, waterproof, good sealing property, heat preservation, energy ...