CPC Subgroup
B21D 19/16 Reverse flanging of tube ends
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) > Reverse flanging of tube ends
B21D 19/16 Flanging or other edge treatment, e.g. of tubes (connecting by making use of folds B21D39/00; flaring-out tube ends B21D41/02) > Reverse flanging of tube ends