GRG (Fiber Glass Reinforced Gypsum) ceiling Tiles. Its Standard Core is asbestos free products, with 12.5mm thickness & with various lengths, widths, colors of PVC laminations / paint & also in Plain or Perforated Types along with the appropriate Suspension Systems. Lay-On/In/tegular edges GRG (Fiber Glass Reinforced Gypsum) Tiles are available for both T-24 and T-15 Tee Grid Suspension Systems