1.High Frequency Aluminium Pipe Mill 2.Diameter :16-32mm 3.Wall Thickness ... : 0.28 0.32 4.Speed: 30-100M/min 5.CE High ... Frequency Aluminium Pipe MillDevice principle: high-frequency welding steel pipe mill is to a certain ... steel butt cut, hopper, steel straightening, steel forming, high-frequency welding, to outer burr, cooling, pipe sizing, ...