CPC Main Group
B21B 17/00 Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
3 direct subcodes
Child Classifications
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- B21B 17/02 with mandrel, (B21B17/08 takes precedence)
- B21B 17/08 with mandrel having one or more protrusions
- B21B 17/14 without mandrel