... Dip Galvanized Ring Lock Scaffolding: Material: Q195, Q215, Q235, S235, Q345... Tube: 48.3mm ... 2500, 3000, And 4000mm.ItemRing lock ScaffoldingMaterialQ235, Q345 material is as per ... lock systemSizeOEM service500, 1000, 1500, 2000, 2500, 3000,4000mmCertificationISO9001-2000,CE AdvantagesTop qualityEasy installationCompetitive priceStandard packageTimely delivery Hot Dip Galvanized Ring Lock Scaffolding ...