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More and more people in the city ride a bicycle, bike theft rate is also rising, drivers often need to carry the heavy lock. The design of the traditional lock and the bicycle pedal together, just put the pedal internal lock in sliding to the bicycle frame slot, shifting the cipher lock you can lock the bicycle lock, car park, which is convenient and fast, avoiding a separate carry lock problems.
Dalian Minzu University
Dalian Nationalities University