The outdoor railing system can protect people safely in the open environment and provide a hand guard when people need support. Outdoor roadsides, steps, and railing systems are installed to assist more tired people. Outdoor railing systems generally use hot-dip galvanized fittings because hot-dip galvanized structural pipe fittings have better oxidation resistance and corrosion resistance. The spray-treated pipe fittings will oxidize and fade in the sun. As a professional manufacturer of railing system fittings, HULK Metal has a complete set of structural pipe fitting molds, which can quickly complete large-volume orders. You can contact us anytime if you need to purchase railing system fittings.