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激光尺 / Laser ruler

激光尺
激光尺

In the daily work, the ordinary ruler may wear the ink, and will make mistakes when we measure radian objects. in order to solve this problem, we design the laser ruler. it can solve the measurement problem and increase red cell lines in white paper, so that ensure writing straightly and don't left traces in the paper at the same time.

University

Liaoning Shihua University

Liaoning Shihua University
liaoning fushun, China, China

Zizheng/Guo,
Liaoning Shihua University

Botao/Liu,
Liaoning Shihua University

Dechuang/Ji,
Liaoning Shihua University

Ruijiang/Gu,
Liaoning Shihua University