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Our sunbonnets are intelligent which are made by sensible material，which can be changed by themselves depending on curled edge at the different weathers, and the ledges of the hat are big enough to against the bright light, and the rainy day as well, furthermore, making the rain-water fall down.
liaoning shihua university
liaoning fushun, China
Liaoning Shihua University
Fengshen Li, Xiangyu Su,Hongyue Qiao,Angyang Li