Scaffolding tube490, ST37 Out Diameter: 27 mm, 38mm, 42mm, 48.3mm-48.6 mm Wall Thickness:2.0 mm, 2.5 mm, 2.75 mm, 3.0 mm, 3.25 mm, 3.85 mm, 4.0 mm Length:5.8 m, 6m, 6.4 m, 6.5 m or any fixed length as per customer request End: Plain or Beveled Surface Treatment: lightly oiled, black painting, hot dipped galvanized Packing: in bundles with steel strips and plastic plugs in both ends as well as wrapped in water-proof nylons Applications:Scaffolding tube is a temporary structure used to support people and material in the construction or repair of buildings and other large structures such as: Material Storage Racks, Pallets, Hydraulic Platforms, Trusses, Columns, Purling, Greenhouse, Stands Towers, and Agricultural Equipment. Mill Test Certification: EN 10204/3.1 B, GB/T or as per TPI outcomes TPI: Third Party Inspection can be arrange before shipment .( like SGS, BV, MOODY, CCIC etc). Mill Test Certification: EN 10204/3.1 B, GB/T or as per TPI outcomes. Feel free to contact us if any further questions,we will serve you as soon as possible.