Workers with protective helmets and smiling while working on new pipeline at construction site.
Palabras clave
men at work,
protective,
helmet,
smiling,
working,
new,
pipeline,
construction,
site,
repair,
system,
pipe,
work,
excavation,
piping,
equipment,
deep,
engineering,
labourer,
maintenance,
movement,
plumbing,
power,
project,
round,
safety,
service,
shield,
supply,
tube,
energy,
industrial,
infrastructure,
sand,
shielding,
dirtied,
surface,
under,
dig,
drain,
shoveling,
industry,
installation,
insulation,
prevent,
reconstruction,
underground,
excavating,
trunk