CPC Subgroup
B28B 21/92 Methods or apparatus for treating or reshaping
Full Title
Methods or machines specially adapted for the production of tubular articles > Methods or apparatus for treating or reshaping
4 direct subcodes
Child Classifications
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- B28B 21/94 for impregnating or coating by applying liquids or semi-liquids
- B28B 21/96 for smoothing, roughening, corrugating or for removing burr
- B28B 21/98 for reshaping, e.g. by means of reshape moulds