CPC Subgroup
B21D 3/04 arranged on axes skew to the path of the work
Full Title
Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (straightening of well casings in situ E21B; ) > by rollers > arranged on axes skew to the path of the work
1 direct subcode
Child Classifications
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