... : 1.Inorganic raw material 2.sound insulation,fireproof 3.bending strength,high intensity ... and wood fiber as strengthen, which has the advantage of high strength, anti freeze, water-resist, fire-proof, damp-proof, sound ... -speed railway highway noise barriers 12, electrical insulation board13, industrial production pad Size:Length:2440mm ... or 603mmThickness:4-30mm sound insulation cement fiber board