Polystyrene and sandwich panels materials is a light load construction materials that is used in construction to reduce load on the building serving labour time n cost. POLYSTYRENE PARAPET, CEILING, WINDOW HOOD, CORNICE, MID-BAND, EXPANSION JOINT,WALL PARTITION,ETC. SANDWICH IS USE FOR MOBAL HOUSES,QUATER CABIN, PARTITION,COLD ROOM, ETC