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The Safe Draw Knife / The Safe Draw Knife

The Safe Draw Knife
The Safe Draw Knife

The placement methods of the draw knife’s blade as uninjurious.We can push forwardthe button beside
the draw knife,there will slide a little blade in front of it,to repair somewhere we can’t wiped.The ways of
holding are variety.Changing the forms and the wayof holding at before.The sizes meet a criterion of the
Ergonomics.

University

Liaoning Shihua University

Liaoning Shihua University
Fushun, China

Yu-zhuang Lei,
Liaoning Shihua University

Zhang Yong,
Liaoning Shihua University

Jia-feng Lin,
Liaoning Shihua University

Zhang Ye,
Liaoning Shihua University

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