A worker welds metal at a construction site. Technology
Schlüsselwörter
industrial,
technology,
metal,
work,
welding,
welder,
factory,
men at work,
construction,
manufacturing,
safety,
industry,
steel,
smoke,
job,
iron,
mask,
protection,
skill,
production,
equipment,
light,
tool,
fire,
spark,
arc,
labor,
craftsman,
technical,
glove
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