Two workers in orange safety gear inspect a large hydraulic structure, focused on efficiency.
Palabras clave
men at work,
safety-gear,
orange,
inspection,
tunnel,
industrial,
concrete,
structure,
engineering,
construction,
protective clothing,
infrastructure,
building,
site,
underground,
work,
job,
industry,
maintenance,
heavy,
labor,
professional,
occupation,
structural,
support,
civil engineering,
labourer,
workwear,
construction site,
public works,
manpower,
technical,
subterranean
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