ROOF COVER BOARD DERIVED FROM ENGINEERED RECYCLED CONTENT
An improved cover board product with a panel comprised of three discrete layers: a top surface layer comprised of either paper or a fiberglass web, a bottom surface layer comprised of either paper or a fiberglass web, and a core layer comprised of discrete paper fragments and polypropylene fragments...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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