... 30-100M/min 5.CE High Frequency Aluminium Pipe making machineDevice principle: high-frequency welding steel pipe mill is to a certain ... hopper, steel straightening, steel forming, high-frequency welding, to outer burr, cooling, pipe sizing, pipe straightening, cutting, cutting Equipment List1. ... Run Out Table 6. Electric Controlled Equipment 7. High Frequency WelderERW Welded Pipe Line Work Flow