Welding Steel Tube Mill Line: used for producing round, square, rectangle pipes. 1.Pipe ... -219mm 2.Thickness: 0.3-8.0mm Welding Steel Tube Mill Line: used for producing round, square, rectangle pipes, etc.Pipe ... & Hydraulic)2) Shear and Butt Welder3) Accumulator (Option: Vertical and horizontal type)4) Forming, Welding and Sizing millA) Feeding & Leveling deviceB ...