CPC Subgroup
B29C 39/40 Compensating volume change, e.g. retraction
Full Title
Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor (B29C41/00 takes precedence) > Component parts, details or accessories; Auxiliary operations > Compensating volume change, e.g. retraction
1 direct subcode
Child Classifications
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