Belling or enlarging, e.g. combined with forming a groove

Introduced: January 1985

Full Title

Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor > Belling or enlarging, e.g. combined with forming a groove

Of 3 combined children, 2 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 1985.

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B29C 57/025 CPC only CPC only
B29C 57/04 using mechanical means since 1985 +1 CPC IPC+CPC Available in IPC and CPC
B29C 57/08 using pressure difference since 1985 IPC+CPC Available in IPC and CPC