Item:glass wool blanket/felt Applications: Heat and coldness preservation and deadening of roof. Heat and coldness preservation of buildings. Deadening treatment of recreational places, cinema, theater, TV station, broadcast station, laboratory, etc. Specification: Density: 12-48kg/m³ Thickness: 25-200mm Length: 3m-20m Width: 600mm, 1200mm Packing: Vacuum Packing,Poly bag and woven bag