Ouvriers sur chantier en action
Schlüsselwörter
men at work,
building site,
construction,
team,
teamwork,
crane,
labourer,
reinforced concrete,
helmet,
working man,
apartment building,
concrete,
security,
stanchion,
structure,
metal,
yellow,
fluorescent,
elevator,
precision,
cork,
armature,
calculation
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