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Duo gong neng bi jia / Multi-function pen holder

Duo gong neng bi jia
Duo gong neng bi jia

And then when people read, and sometimes because they can not bookmark worry, girls write or learn, sometimes hair blocking the line of sight, but could not find a hairpin. The origin of these problems as a design, designed this multifunctional pen.

University

Zhengzhou Institute of Light Industry

Zhengzhou Institute of Light Industry
Zhengzhou, China

zhongyu Bai,
Zhengzhou Institute of Light Industry

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