... , 1370mm,2740mmWidth: 430mm, 425mm,1200mm Thickness: 25-150mmDensity: 12,16,20,24,32,40,48kg/m3Thermal conductivity: 0.038-0.06W ... Grade AHydrophobicity:More than 98.2%Sound Absorption coefficient: 1.03 product reverberation method 24kg/m3 2000HZ UsageHeat preservation for steel ... hours after been unpacked.Update Date:2012-02-02 22:20:03