Safety warning device is used in road surface construction

The utility model provides a safety warning device is used in road surface construction comprises warning sign, bracing piece and base, the warning sign is equipped with warning mark picture, warning mark and photosensitive sensor, warning mark picture, warning mark are located the warning sign fron...

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Bibliographische Detailangaben
Hauptverfasser:	FAN XIAOYU, YU LIZE, ZENG MINGMING, DONG NAIBAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES FIXED CONSTRUCTIONS
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