A worker installs metal spans at a construction site.
Schlüsselwörter
metal,
span,
technology,
construction,
builder,
steel,
structure,
architecture,
industry,
concrete,
frame,
support,
engineering,
equipment,
work,
men at work,
safety,
building,
material,
structure,
engineer,
overpass,
site,
industrial,
transportation,
transport,
connect,
modern,
bridge,
road
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