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PCE
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CPC Subgroup
B29C 63/20

using pressure difference, e.g. vacuum

Full Title

Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor (B29C73/00 takes precedence; by blowing B29C49/00; by thermoforming B29C51/00) > using tubular layers or sheathings (B29C63/26 take precedence; ) > using pressure difference, e.g. vacuum