A worker installs metal spans at a construction site.
Palabras clave
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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