Automotive sound-absorbing cotton is a variety of materials from thermal spray melting, the structure is very thin and long tubular fibers, with a high coefficient of sound absorption, flame retardant, low water absorption, non-mildew, non-toxic odorless and dust-free characteristics of the current new material In many OEMs, it has been extensively used to absorb the noise generated by the engine and the car. Can also be applied to the mask cloth, filter materials and other fields.