emergency exit in the workplace fire and smoke
Schlüsselwörter
background,
evacuate,
signs,
service,
warning,
alert,
firefighter,
extinguish,
prevent,
professional,
precaution,
measurement,
fighting,
industry,
checking,
smoke,
extinguisher,
fire,
alarm,
safety,
security,
red,
house,
danger,
office,
protection,
emergency
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