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Due to the Traffic regulations , motorcycle riders need to drive on the right,but the draincover set up on the wayside.
In the rainy day motorcycle riders to fallible ride on the drain cover and not pay attention to accident. We used call attention to use reflective lights remind the motorcycle riders and the LIGHTER is installed on the drain cover Then we increase the increase plane let tire go through the drain cover can skid the speed. 


Oriental Instituts Of Technology

Oriental Instituts Of Technology
Taipei, Taiwan