Heating plant with pipes interior and factory worker
Keywords
factory,
men at work,
industry,
production,
uniform,
gas,
pipe,
storage,
hard hat,
boiler,
water,
man,
plant,
energy,
natural,
job,
working,
employee,
maintenance,
occupation,
valva,
industrial,
pipeline,
refinery,
transport,
pressure,
flow,
pipe,
heating,
source,
earmuffs