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mobile phone / 13646837061

mobile phone
mobile phone

"90" after is a protractor
like a fan,and also good
at drawing angle.It has all
the functions as the common
protractor.more convenient
than normal protractor.At
the same time you can borrow
half to your classmate and
have the full enjoyment of
sharing .“90”after glides according to the groove and bulge.And dot as the center of
rotation,so can be accurate and easy to draw from 0 °to 180 °all the angles.

University

Zhejiang University Of Science and Technology

Zhejiang University Of Science and Technology
Hangzhou,Zhejiang Province, China

Yinxiao Zhu

Design

Zhejiang University Of Science and Technology

Zhejiang University Of Science and Technology
Hangzhou,Zhejiang Province, China