Double-needle-valve ejector

The invention belongs to the technical field of marine oil supply equipment, and discloses a double-needle-valve ejector which comprises a body, the body is provided with a working cavity, a needle valve assembly is arranged in the working cavity and comprises an inner needle valve and an outer need...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MOON MYUNG-MYUNG, YANG LI, HEI XIAOFU
Format: Patent
Sprache:chi ; eng
Schlagworte:
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