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It is easily to hurt the baby's finger tip, when adults trim the baby's length nail.
Now, this device through the improvement so that can avoid the potential injure.
Zhejiang University of Technology
Hangzhou, China
HangZhou, China
Zhejiang University of Technology
Hangzhou, China
HangZhou, China
Ni Peifen/Jiang Huiliang/Gong Lu/Chen Qiang
