Workers welding work at night in the pipeline.
Schlüsselwörter
construction,
engineering,
equipment,
factory,
gas,
industrial,
industry,
light,
manual,
manufacturing,
mask,
metal,
metalwork,
occupation,
pipeline,
protection,
safety,
steel,
technology,
tool,
torch,
welder,
welding,
men at work,
working
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