... flagpoles, curtain poles, umbrella rib. FRP Square Rods, Fiberglass Square Poles FRP rods are of long service life, ... umbrella rib, cable pole, etc. Features of our pultruded FRP products:-Corrosion Resistant -Light Weight, High Strength and Impact ... & Fatigue Resistant-Non-Conductive & Non-Magnetic -Free From Maintenance -Fire Retardant -Dimensional Stability -Attractive, Design Flexibility ...