... step ladder 2)consist of round tube and grate 3)corrosion resistant and fire retardant high strength 1)Name:industrial frp plastic step ladder ... 3) FEATURES OF FRP PRODUCTS:A, CORROSION RESISTANTB, FIRE RETARDANTC, HIGH STRENGTHD, NON-MAGNETICE, NON-CONDUCTIVEF, ... ) USAGE OF FRP PRODUCTS:OPERATION TERRACE / GROUND FLOOR / STAIRCASES AND LADDER / STAIR TREAD / TRENCH COVER / RAILINGS / WALKWAYS / GOODS ...