Engineer examining excavation concrete Drainage Pipe and manhole water system underground at construction site.
Schlüsselwörter
pipe,
engineering,
machine,
machinery,
system,
vehicle,
men at work,
heavy,
industrial,
work,
bulldozer,
drain,
excavation,
shoveling,
ground,
hydraulic,
industry,
scoop,
shovel,
construction,
drainage,
equipment,
road,
trench,
water,
building,
concrete,
contractor,
development,
earth,
engineer,
foreman,
labor,
land,
safety,
uniform,
digging,
sand,
site,
loader,
tractor,
backhoe,
cement,
group,
job,
laying,
storm,
team,
civil
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