... dia.: 8-219mm 2.Thickness: 0.3-8.0mm Welding Steel Tube Mill Line: used for producing round, square, ... Welder3) Accumulator (Option: Vertical and horizontal type)4) Forming, Welding and Sizing millA) Feeding & Leveling deviceB) Forming machineC) Guiding, ... extruding, Welding & scraping deviceD) One set of Cooling water tankE) Sizing millF ...