Welding teamwork, workers welding 4
Palabras clave
construction,
heavy,
helmet,
industrial,
industry,
instructor,
iron,
job,
labourer,
mask,
metal,
occupation,
steel,
team,
teamwork,
torch,
welder,
welding,
equipment,
expansion,
guideline,
hardener,
hot,
joint,
labor,
level,
material,
method,
progress,
quality,
rebar,
safety,
schedule,
smoke,
spark,
work,
manual,
tool,
fabrication,
bright,
repairing,
oxyacetylene,
fabricator,
vertical,
skill,
men at work,
dark,
tied-up
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