CompositeAluminum foil glass fiber fabricThermal sealing covers and vapor barriers for insulation materials such as glass wool, rock wool, mineral wool PEF products, and rubber-plastic products. Suitable for cotton felt, cotton boards, cotton pipes, and PEF board pipes, as well as rubber-plastic board pipes for online thermal sealing bonding. Meets the insulation and vapor barrier requirements for heating, ventilation, and air conditioning pipes, as well as for cold and hot water pipes, and for building insulation needs. Ensures indoor warmth in winter and coolness in summer, providing year-round comfort.