CPC Subgroup
B28B 21/42 by shaping on or against mandrels or like moulding surfaces
Full Title
Methods or machines specially adapted for the production of tubular articles > by shaping on or against mandrels or like moulding surfaces
4 direct subcodes
Child Classifications
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- B28B 21/44 by projecting, e.g. spraying
- B28B 21/46 by dipping
- B28B 21/48 by wrapping, e.g. winding
- B28B 21/50 Details of compression or compacting means