... in manufacturing. Automatic Industrial ss pipe wedling machine Specifications:1.Process pipe diameter:8-219mm2.Process ... book machine (uncoiler), 2.forming welding machine,3.grinding machine, 4.sizing machine, 5.frame straightening, 6.cutting machine, 7 ... : open-book machine, forming welding machine, grinding machine, two sizing units, straightening frame, cutting machine, finished frameCertification: ...