Worker under checking the waste water treatment pond industry large to control water support industry.
Palabras clave
men at work,
industry,
treatment,
environment,
factory,
engineer,
face mask,
healthy,
helmet,
industrial,
job,
medicals,
outdoors,
pipe,
pipeline,
pollution,
power,
professional,
protection,
protective clothing,
pump,
quality,
quality control,
reusing,
sewage,
station,
steel,
storage tank,
tank,
teamwork,
technology,
two people,
uniform,
valva,
waste,
water tank,
water treatment plant,
woman,
work,
working out,
construction
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