... (gritted or chequre) 3)walkway,platform,stair step 1)Name:fiberglass reinforced plastic board is FRP grating with covered surface.The sheet can ... SIEGRID FRP PRODUCTS:A, CORROSION RESISTANT:B, FIRE RETARDANT:C, HIGH STRENGTH:D, NON-MAGNETIC:E, NON-CONDUCTIVE:F, NON-SPARKING ...