Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Full Title

Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C49/04) > characterised by the shape of the extruded material at extrusion > Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Child Classifications

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• B29C 48/10 flexible, e.g. blown foils
• B29C 48/11 comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped