DIFF Subgroup Additional Only
B29C 2049/222 Full Title
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor > using multilayered preforms or parisons
B29C 2049/222 Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor > using multilayered preforms or parisons