... Speed: 30-100M/min 5.CE High Frequency Aluminium Pipe making machineDevice principle: high-frequency welding steel pipe mill is to ... steel butt cut, hopper, steel straightening, steel forming, high-frequency welding, to outer burr, cooling, pipe sizing, pipe straightening ... Head4. Flying Saw Controlled by Computer 5. Run Out Table 6. Electric Controlled Equipment 7. High Frequency WelderERW Welded Pipe ...