1.Aluminum foil, smooth surface, 2.High light reflectivity, 3.High strength, airtight, waterproof, 4.Thickness:0.19mm Aluminum foil, smooth surface, high light reflectivity, vertical and horizontal tensile strength, airtight, waterproof, good sealing performance. Materials and equipment is mainly used for heating and pipe insulation materials and building insulation materials wool muffler, ultra- ...