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安全灯 / Security Light

安全灯

Grane at work, as a result of the loaded hopper landing fast, easy to hurt the construction personnel, therefore in the loaded hopper bottom to install lamp, warning danger zone, to avoid accidents.

University

Zheng Zhou University Of Light Industruy

Zheng Zhou University Of Light Industruy
Zhengzhou, China

Zhang Wei,
Zheng Zhou University Of Light Industruy