steel structure built on a construction site
Schlüsselwörter
china,
industrial,
construction,
industry,
economy,
frame,
steel,
beam,
truss,
support,
structure,
design,
component,
engineering,
real estate,
development,
material,
shape,
arc,
connection,
sky,
blue,
background,
solid,
metallic,
outline,
architecture,
city,
cross,
commercial,
modern,
building material,
geometry,
skeleton,
assembly,
factory,
workshop,
crane,
machine
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