Field warning device

The utility model discloses a site warning device which comprises a warning board, a supporting frame and two connecting blocks, the two connecting blocks are located on the left side and the right side of the bottom of the warning board respectively, the left side and the right side of the top of t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: QI SHUPAN, XUE SHAOJIE
Format: Patent
Sprache:chi ; eng
Schlagworte:
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