A man in a yellow safety vest stands in front of a large construction site
Palabras clave
construction,
pipeline,
pipe,
trench,
engineering,
industrial,
underground,
equipment,
work,
gas,
line,
tube,
energy,
technology,
installing,
heavy,
men at work,
steel,
excavation,
job,
ground,
metal,
safety,
fuel,
construction site,
laying,
long,
machinery,
oil,
gasoline,
dirtied,
refinery,
tractor,
building,
liquid,
earth,
water,
activity,
lowering,
operating
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