They do not support combustion and produce minimal smoke, ensuring safety in case of a fire emergency They do not support combustion and produce minimal smoke, ensuring safety in case of a fire emergencyfrp duct. This feature, along with their acoustic insulation capabilities, makes them a preferred choice for commercial and industrial applications.Fiberglass handrail systems are fabricated from pultruded fiberglass components and molded thermoplastic connectors. Our modular fiberglass grating handrail systems are available in 2 square or 2 round configurations that are easy to grip, making them ideal for any high traffic area. Our fiberglass ladders and cages can be installed in a variety of applications, from sumps to tanks, building, piers, portable equipment, etc., providing years of strength and dependability. For more on fiberglass grating handrails and ladders, click here.