... : Q195,Q235 Thin Wall High Frequency Welded Round Steel Tube , carbom steel pipe, gavanlized steel tube,chrome plated steel tube/pipe1) Thin Wall High-frequency welded2 ... ) Outer diameter: 10-63mm,Thickness: 0.4 - 2.0mm, length<3m3) Steel ... hoop, covered by PE fabric/plastic woven bag, or customize. chrome plated steel pipe