EN39 G.I. Scaffolding Tube: Standard: BS 1139, BS1387-1985, EN 39, EN10219, JIS G 3444 Steel Grade: Q195, Q215, Q235, Q345, S235JR, S275JR, STK400, STK500 Out Diameter: 27mm, 38mm, 42mm, 48.3mm-48.6mm Wall Thickness: 2.0mm, 2.5mm, 2.75mm, 3.0mm, 3.25mm, 3.85mm, 4.0mm Length: 5.8m, 6m, 6.4m, 6.5m, 0.3-18m End: Square cut, Burr removed Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black Use: Scaffolding is a temporary structure used to support people and material in the construction or repair of buildings and other large structures. Material Storage Racks, Pallets, Hydraulic Platforms, Trusses, Columns, Purlins, Greenhouse, Stands Towers, Agricultural Equipment Packing: Plastic plugs in both ends, Wrapped in waterproof paper or PVC sleeve, and sackcloth with several steel stripsPlastic plugs in both ends, Wrapped in waterproof paper or PVC sleeve, and sackcloth with several steel strips