Specification: A .main frame: Material:Steel Q-235 Size:1700mm*914mm 1700mm*1219mm Outer diameter/OD:46mm/48mm/56mm Wall thickness:2.5mm/2.2mm/2.0mm B. ladder frame Material:Steel Q-235 Outer diameter/OD:22mm Wall thickness:2.4mm/2.2mm C. Cross brace: Material:Steel Q-235 Size:2174mm/2019mm/1821mm Outer diameter/OD:22mm Wall thickness:2.1mm/2.0mm D. walking board: Material:ahaped steel Size:1800mm*400mm Thickness:50mm E. Wheel: Material:Rubber Size:6' or 8' Finish surface: painted/hot dipped galvanized/cold galvanized/powder coated are available Weight: about 50kgs