... weight and high strength 3. insulation 4. long using life frp fiberglass pipe is usually used as beam,armrest,fence,and handrail ... be applied as beams,handrail, armrest,ladder,measuring instrument etc.Pultruded fiberglass pipe is usually used as beam,armrest,fence,and handrail ... be applied as beams,handrail, armrest,ladder,measuring instrument etc. frp fiberglass pipe