CPC Subgroup
B28B 21/10 using compacting means
Full Title
Methods or machines specially adapted for the production of tubular articles > by casting into moulds > using compacting means
5 direct subcodes
Child Classifications
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- B28B 21/12 tamping or ramming the material or the mould elements
- B28B 21/14 vibrating, e.g. the surface of the material
- B28B 21/18 using expansible or retractable mould or core elements
- B28B 21/22 using rotatable mould or core parts
- B28B 21/36 applying fluid pressure or vacuum to the material (combined with slip-casting B28B21/08)