CPC Subgroup
B29C 49/16 using pressure difference , e.g. pre-blowing
Full Title
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor > Biaxial stretching during blow-moulding > using pressure difference , e.g. pre-blowing
1 direct subcode
Child Classifications
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