oblong 40x70mm galvanized steel tubing Steel Gr. Q195-Q235 Tubing Thickness 0.45-4.75 mm Sample ... Free Standard:ASTM,JIS,DIN, Grade:stainless/carbon/alloy steel Wall Thickness:1 ... St52.4 Q235B Q345B etc 2. Wall Thickness: 1-10mm3.Diameter: X-axis 12-280mm, Y-axis, ... 6-150mm4.Length: as per your requirement, 1-6m commonly produced5. surface: Stainless Steel :2B,BA, ...