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Stitching pencil / Office supplies

Stitching pencil

Short pencil can't use, can use mortise and
tenon joint joining together to make the
same pencil stitching ogether to
continue to use, not only save
the resources, and reduce the
waste of the pencils, more
environmental
protection.

University

Zhengzhou University of Light Industry

Zhengzhou University of Light Industry
Henan,Zhengzhou, China

zhen liu,
Zhengzhou University of Light Industry

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