1.CAS nano aluminum-magnesium fireproof acoustic felt, acoustic heat insulation and fire prevention as a whole, class A non-combustible, environmentally friendly inorganic, can overcome the high-frequency sound environment such as machine room, anti-vibration and anti-squeeze, durability, weighted acoustic insulation ≥ 30DB.
2. Inorganic glass fiber needled felt, inorganic environmentally friendly, ultra-fine fibers of up to 9 μm, commonly used in tunnel culverts, elevator shafts, sound absorption and noise reduction effect is great. Commonly used in tunnel culvert elevator shaft acoustic noise reduction, acoustic noise reduction effect is great.