Metal structure of a bridge
Schlüsselwörter
bridge,
structure,
steel,
beam,
rod,
grid,
metal,
support,
under,
engineering,
infrastructure,
below,
ceiling,
facility,
industrial,
industry,
transit,
transfer,
big,
building,
civil engineering,
civil,
bar,
weight,
iron,
strong,
solid,
strength,
hold
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