A worker carefully connecting pipes with strong protective gloves on
Schlüsselwörter
pipe,
pipeline,
fitting,
connection,
men at work,
glove,
hand,
industry,
metal,
steel,
black,
heavy,
labor,
engineering,
construction,
assembling,
installing,
maintenance,
tight,
secure,
pressure,
bolt,
nut,
flange,
round,
joint,
mechanic,
dirty,
oily,
equipment,
closeup,
detail,
repair,
service,
system,
process,
manual,
technology,
industrial,
manufacturing,
close,
focused,
careful,
work,
build,
assembly,
structure,
support
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