Raw Material: 100% Polyester Fiber, Recycled Material: Function: Acoustic, Noise Absorption: Size: 1220*2440*9mm;4' * 8', Color: Orange ,34 Colors AvailableOur polyester fibre panel is flame retardant, heat insulation, thermal insulation, moistureproof, prevent mildew, Packing Information: 1. Sheet Packing, Plastic bag inside, Carton outside; 3. Carton's Size: 123cm * 245cm * 14cm; 4. Carton's Weight: 66.5kg per Carton Advantages: 1. We only use high quality raw fiber material; 2.polyester fiber sound-absorbing panels, and other similar acoustic properties of porous materialeasing of frequency; high-frequency sound absorption coefficient, greatly improve the sound absorption performance of sound-absorbing materials in the back left cavity and it constitutes; noise Mar 25, 2021 · First of all, sound absorbing materials such as glass wool, rock wool and sponges should not be considered for indoor sound insulation materials. Glass wool and rock wool,
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