Supplying Fitting And Fixing Of 9 M Thickness Polyester Fiber Acoustic Panel Is Synthesized By Hot Pressing, And The Porosity Is Above 90%. The Sound Absorption Property Of The Sound Absorbing Board Is Good In The Range Of Middle And High Frequency. It Has Th Advantages Of Heat Insulation, Fire Prevention, Dust Prevention, Light Weight And No Decay, Also Has Beeter Sound Absorption Effect, High Strength. Good Decoration, Convenient Construction, Environmental Protection All Complete Job In All Aspects As Per Direction By E/I.