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“Warning Call” / “Warning Call”—Safety Helmet

“Warning Call”
“Warning Call”

The Warning call is through the though the monitor to the mine airtemperature.pressure.change monitoring when there is danger condition detector will through the red light to feedback dangerous information. in order to timely to leave the dangerous area toreduce casualties.

University

li, bingzong

li, bingzong
Shaanxi, China

Design

li, bingzong

li, bingzong
Shaanxi, China