Men working above sign
Palabras clave
signs,
safety,
construction,
hazard,
dangerous,
industrial,
beware,
attention,
alert,
label,
risk,
protection,
maintenance,
person,
site,
warning,
overhead,
check,
avoid,
security,
falling,
material,
injury,
helmet,
workplace,
work,
protect,
head,
hard hat,
signal,
accident,
careful,
information,
prevention,
safe,
personal,
protective,
danger,
industry
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