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automotive instruction / automotive instruction

automotive instruction

Carts parked on the roa-dside, will block the car behind with over sight,the car driver can not see the front of the upcoming passage of kids.Induction heat detectors installed in front of the cart, when someone pa-sses the sensor sends a signal, signal lights at therear-view mirror.


Zhengzhou University of Light Industry

Zhengzhou University of Light Industry
Zhengzhou, Henan Province, China