... 4.Thickness:0.6mm Micro-Hole Sound Absorption Aluminum Foil Flame Retardant CharacteristicIt can be laminated all kind ... , high-temperature nano microfiber foam has excellent flame resistance, sound absorption and insulation. It's widely used to improve ... apartments, roof, walls, central air conditioning, insulation, sound absorption, sound insulation, shock-resistant material, as well as roads ...