Glass wool blanket 1. Density: 12,16,20,24,32,40,48kg/m3 2. ... wall, partition wall, train compartment, air duct, water heater etc. It features:1. Excellent for heat preservation, thermal insulation, sound absorption;2 ... /T 10299-1988Moisture rate ≤5GB/T 16401-1986Sound absorption coefficient 1.03product reverberation method24kg/m32000HZGBJ47-83Slag inclusion content ≤0.3 Photos ...