Material: 7-micron soft aluminum foil, PE, fiberglass cloth Application: Used as duct jacket on the glass wool of an insulated flexible duct, or as other heat insulator of HVAC system and vapor barrier Characteristic: smooth in surface great tensile strength and high performance in vapor barricading, anticorrosive Width: 1000, 1200, 1250mm Length: 50-1200m More specifications are available based orders