... 3. insulation 4. long using life frp grp pipe is usually used as beam,armrest,fence,and handrail, ... retardant.Light weight and high strengthUV resistanceCustomizationSafetyInsulationEconomy CharacteristicApplicationfrp grp pipe can be applied as beams,handrail, armrest,ladder, ... show in USAThe certification we already acheived:Pultruded fiberglass pipe is usually used as beam,armrest,fence,and handrail ...