CPC Subgroup
B21D 19/12 Edge-curling
Full Title
Flanging or other edge treatment, e.g. of tubes (connecting by making use of folds B21D39/00; flaring-out tube ends B21D41/02) > Edge-curling
1 direct subcode
Child Classifications
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- B21D 19/14 Reinforcing edges, e.g. armouring same