Do not enter when light is flashing sign flashing red light indicates potential hazardous atmosphere
Palabras clave
signs,
enter,
alert,
warning,
safety,
hazard,
industrial,
emergency,
entry,
accident,
chemical,
disaster,
fire,
signal,
signboard,
rescue,
safe,
light,
flashing,
flash,
label,
notice,
industry,
toxic,
gas,
flammable,
on,
area,
zone
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