Homocentric-square-shaped track for garage door

The utility model discloses a track shaped like a Chinese character'hui 'for a garage door, which comprises a first U-shaped track, the surface of the first U-shaped track is fixedly connected with a second U-shaped track, the surface of the second U-shaped track is fixedly connected with...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ZHOU CHAOFENG, SHA SENRONG, WANG FUNIAN
Format: Patent
Sprache:chi ; eng
Schlagworte:
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