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