| 摘要 |
A duct liner arranged in a roll including an insulation layer having a first face surface and a second face surface that is opposed to and spaced apart from the first face surface and a fiberglass mat facing disposed on the first face surface, such that the majority of the first face surface is covered by the facing, wherein the fiberglass mat facing is not disposed on the second face surface, and wherein the duct liner is rolled such that the fiberglass mat and first face surface is radially outward of the second face surface. |
