Glass Fiber Reinforced Gypsum (GFRG) Panels ...
A new concept of material was brought from England to the United States and Canada in 1977: a product now known as Glass Fiber Reinforced Gypsum, also referred to as Fiberglass Reinforced Gypsum (FRG) and Glass Reinforced Gypsum (GRG). This included gypsum plaster reinforced with glass fibers to produce a thin,lightweight, yet strong material.
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