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Graduated pen / Pen

Graduated pen
Graduated pen

It has always been difficult for us to know its lengh when you draw a curve, The pen leaves traces during drawing , which helps us recognize its lengh and reduce our time of measure.

University

Wuhan Institute of Technology

Wuhan Institute of Technology
Wuhan, China

Design

Wuhan Institute of Technology

Wuhan Institute of Technology
Wuhan, China