What kind of sound-absorbing board material is good?

The material of the sound-absorbing board is purchased with the number “156, 3268 in the middle, and 9388 at the end”. Usually, the sound-absorbing board is classified according to the material used, and there are mainly the following types: 1. Wooden sound-absorbing board: It is made according to the principle of acoustics and is composed of veneer, core material and sound-absorbing felt. 2. Mineral wool sound-absorbing board: The surface treatment forms are rich and the board has a strong decorative effect. 3. Fabric sound-absorbing board: The core material is centrifugal glass wool. Centrifugal glass wool is an acoustic material that has been widely used all over the world for a long time and has been proven to have excellent sound absorption performance. 4. Polyester fiber sound-absorbing board: Its raw material is 100% polyester fiber, which has the advantages of sound absorption, environmental protection, flame retardancy, heat insulation, simple construction, good stability, impact resistance, good independence, high cost performance, etc. There are a variety of colors to choose from.