red, black and white Danger, Do Not Enter Silo warning sign
Palabras clave
danger,
signs,
warning,
red,
black,
white,
to do,
non,
enter,
toxic,
gas,
fume,
entrapment,
suffocation,
hazard,
carbon dioxide,
grain,
wheat,
silage,
farm,
industry,
rescue,
emergency,
safety,
submerge,
storage,
facility,
buried,
workplace,
accident,
nitrogen,
oxide,
air,
asphyxiate,
concrete,
wall,
permit,
permission,
risk,
day,
confined,
space
){kind=link}