Parameters description:

* Materials: 1008/1010/1020/Q235B (quality carbon steel) /Q195(quality steel)
* Tube thickness: T1.5~T3.0
* Dia: 16~22mm are avaiable

* Length: any length is available  (420mm ~ 649mm)
* Finish: Golden galvanized,  zinc galvanized
* Zinc plate thickness: 8~15um
* Solid axle and hollow axle
* Plastic rim for HDPE raw material