Be careful, the crane is working.,Caution sign.
Palabras clave
accident,
alert,
architecture,
attention,
background,
build,
builder,
building,
careful,
cartoon,
caution,
clothes,
construction,
crane,
danger,
dangerous,
emergency,
engineer,
engineering,
equipment,
factory,
first,
hard,
hazard,
health,
helmet,
illustration,
industrial,
industry,
job,
maintenance,
man,
people,
professional,
protection,
regulation,
risk,
rule,
safe,
safety,
security,
signs,
site,
steel,
vector,
warning,
work,
men at work,
workplace
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