steel tube mill 1. Pipe diameter: 7.5mm~273mm) 2. Wall thickness: 0.3mm~12mm. 3. Speed: 0mm~90mm steel tube mill(another names: Pipe-making machine line, tube mill, high frequency steel pipe tube mill machine, welded pipe mill line, pipe mill, pipe production line, and so on.) The complete line include the following device:1. Double side Uncoiler2. Hoop cage or Horizontal Accumulator3. Main ...