It is porous material and the enormous micro holes are made up of fiber. The sound wave will be reflected partly after its striking on the material surface. The sheet materials absorb some sound waves: others sound reflection greatly. Thus, it lowers the noise by controlling and public facilities and place,cultural and recreational place, sport place, hotel and shop environment etc..

Specification:
600A?300A?12a??14a??15a??18
600A?600A?12a??14a??15a??18
600A?1200A?12a??14a??15a??18