Engineers are supervising underground water pipe construction inspection and worker working on modern city
Keywords
supervisor,
construction,
pipe,
industry,
industrial,
equipment,
engineering,
work,
pipeline,
men at work,
technology,
maintenance,
repair,
water,
building,
site,
manufacturing,
pipe,
metal,
sewer,
safety,
steel,
engineer,
plumbing,
man,
drain,
underground,
system,
installation,
sewage,
round,
drainage,
welding,
person,
sanitary,
plumber,
gas,
people,
inspection,
occupation,
construction site,
burrowing,
excavation,
dig,
infrastructure,
activity,
structure