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Folder of the rod is not convenient to insert in use.One end of the folder rod design into a 45 degree Angle,And turn right into rounded corners,This can effectively solve the problem of difficult to use,Get the very big enhancement, ease of use and more human.
liaoning shihua university
liaoning shihua university
fushun city, China
Xiaoli Wu,
liaoning shihua university
Zhaolong Liu,
liaoning shihua university
Honghe Gao,
liaoning shihua university
zhang yong,
liaoning shihua university