Blowing training device

The utility model discloses an air blowing training device which comprises a face buckling cover, an air blowing pipe is connected to the middle of an inner cavity of the face buckling cover in an embedded mode, connecting side plates are fixed to the two sides of the outer surface of the face buckl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KANG NIANSONG, GU HONGPING, ZHANG JIAYING, CHEN XIAOTENG, NI YUEHAN
Format: Patent
Sprache:chi ; eng
Schlagworte:
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