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The boards produced by Huamei glass wool by formation through curing by applyin pressure and heating after applying thermosetting cement are suitable for using in heat preservation and sound insulation in air ducts of different sizes of air conditioners and other equipment. Veneering like aluminum foil can be applied to the surface. The boards preserve heat efficiently, absorb bibration and sound. They are light in weight, resistant to fire Main indexes of physical properties of centrifugal glass wool: ItemUnitIndexStandardDensityKg/m310-100GB/T 5480.3-1985Average fiber dia.μ m5.5GB/T 5480.4-1985Water content%≤1GB/T 3007-1982Grade of combustibilityNon-combustible Grade AGB 8624-1997Reshrinking temp≥250GB/T 11835-1998Thermal conductibilityw/m·k0.038-0.06GB/T 10294-1988Hydrophobicity%≥98.2GB/T 10299-1988Moisture rate%≤5GB/T 16401-1986Sound absorption coefficient1.03 product reverberation method24kg/m3 2000HZGBJ47-83Slag inclusion content%≤0.3 Product specifications of centrifugal glass wool: Product Length(mm)Width(Diameter)mmThickness(mm)Density( kg/m3)Boards1200-2200600-120020-10024-96Felt in roll11000,20000120025-15012,16,20,24,32,40,48Pipes100015-40020-10045-90 Physical Properties :Item UnitIndexStandardDensityKg/m310-80GB 5480.3-1985Average fiber diaμ m5GB 5480.4-1985Reshrinking temp500GB/T 11835-1998Thermal conductibilityw/m·k0.041-0.07GB/T 10294-1988Grade of combustibilityNon-combustible GradeAGB 8624-1997Hydrophobicity≥99GB/T 10299-1988