Novel measurable primary-secondary type vacuum cup

The utility model discloses a novel measurable child-mother type vacuum cup, and relates to the technical field of vacuum cups, a heat preservation mother cup is mounted on the upper surface of a mounting seat, a child cup is mounted on the lower surface of the mounting seat, and a connecting pipe w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YAN FENGZHI, GONG AIHONG
Format: Patent
Sprache:chi ; eng
Schlagworte:
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