They are gypsum -coated panels with a layer of paper in blossom and the other face in brown.
They are highly efficient gypsum panels used to cover buildings with dry walls.
These panels can contain the fire.
Fire -resistant gypsum plates are suitable for internal walls and use all areas that require a high level of fire protection, and contains additional glass fibers to maintain the safety of the plate for longer periods of regular panels when they are exposed to a fire.
It is considered a good sound insulator.