Engineers man wear protective masks to work in the factory.
Schlüsselwörter
safety,
engineer,
factory,
helmet,
job,
protection,
construction,
mask,
warehouse,
men at work,
pollution,
yellow,
machine,
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equipment,
chemistry,
indoor,
machinery,
protective,
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men at work,
working,
workshop,
breathing,
dust,
fever,
filter,
human,
hygiene,
manufacturing,
medicine,
operating,
production,
respirator,
healthy,
disease,
engineering,
hard hat,
occupation,
prevention,
surgery,
technician,
girl,
automated,
labor,
protect
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