Duplex combined vacuum pump for negative pressure suction device

The invention discloses a duplex combined vacuum pump for a negative pressure suction device. The duplex combined vacuum pump comprises a base, a sound insulation box, a first vacuum pump and a secondvacuum pump, the sound insulation box is fixedly installed at the top of the base, the first vacuum...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	LIN GUANHONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HEATING HUMAN NECESSITIES HYGIENE LIGHTING MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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