worker checking chemical water treatment equipment
Schlüsselwörter
chemical,
preparation,
water,
industry,
men at work,
working,
protective,
factory,
people,
protection,
indoor,
manufacturing,
control,
horizontal,
workwear,
inspector,
authority,
day,
hard hat,
business,
occupation,
year,
mature,
caucasian,
manual,
mid,
quality,
holding,
expertise,
standing,
man,
helmet,
labourer,
examining,
bearded,
indoor,
pipe,
copy space,
document,
blue-collar,
treatment
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