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With the development of modern industry, the environment is deteriorating, the traffic is becoming more and more crowded, bicycle has become a good choice for people to go out.
But the bicycles are often stolen , and which make the owners annoyed.
The pedals of bicycle combine with lock, making lock and unlock more convenient, making travel more safely and smoothly!
NanChang university
Art & Design college
NanChang, China
Xuesong Li
Zun Zhang
Lin Fu
Xiaopu Jiang
