... high strength 3. insulation 4. long using life round fiberglass pipe is usually used as beam,armrest,fence,and handrail, ... retardant.Light weight and high strengthUV resistanceCustomizationSafetyInsulationEconomy CharacteristicApplicationround grp pipe can be applied as beams,handrail, armrest,ladder, ... engineering;weaving and dyeing;pharmaceuticals;Food processing;Marine. round fiberglass pipe