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激光尺 / Laser ruler


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.


Liaoning Shihua University

Liaoning Shihua University
liaoning fushun, China, China

Liaoning Shihua University

Liaoning Shihua University

Liaoning Shihua University

Liaoning Shihua University