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Shorter / pencil

Shorter

A little change make a big difference.Shorter is an improved pencil.It make the lead shorter to save resource.It also makes it much easier to Recycle the wood,for there is no need to separate the last remaining wood from graphite。

University

Nanjing University of Aeronautics and Astronautics

Nanjing University of Aeronautics and Astronautics
Nanjing, China

Design

Nanjing University of Aeronautics and Astronautics

Nanjing University of Aeronautics and Astronautics
Nanjing, China

Dongyang Xiang Binglei Niu Junjie Jia