Construction workers build tunnels in underground infrastructure project near urban area
Schlüsselwörter
infrastructure,
construction,
technology,
tunnel,
men at work,
machinery,
underground,
track,
building,
project,
urban,
labor,
engineering,
concrete,
site,
tool,
scaffolding,
equipment,
safety,
transport,
excavation,
labourer,
manual,
work,
system,
teamwork,
city,
installation,
process,
development,
environment,
mining,
structure,
maintenance,
design,
progress,
planning,
industry,
management,
heavy,
repair,
detailed,
roadway,
innovation
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