CPC Subgroup
B21C 1/22 specially adapted for making tubular articles (bending sheet metal into tubular form by drawing B21D5/10)
Full Title
Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing > Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes > specially adapted for making tubular articles (bending sheet metal into tubular form by drawing B21D5/10)
1 direct subcode
Child Classifications
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- B21C 1/24 by means of mandrels