Workers installing water supply pipeline system, close up
Palabras clave
pipeline,
installation,
men at work,
plumber,
water,
supply,
repair,
flange,
bolt,
screw,
sleeve,
site,
gas,
equipment,
work,
construction,
industry,
pipe,
engineering,
tool,
nut,
wrench,
attaching,
engineer,
trench,
piping,
heating,
tube,
connection,
metal,
pump,
iron,
plumbing,
closeup,
installer,
builder,
excavation,
laying,
steel,
tubular,
fitting,
screwdriver,
assembly,
fix,
labor
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