Worker hand operating industrial valve on pipeline with control wheel
Schlüsselwörter
men at work,
hand,
operating,
industrial,
valva,
pipeline,
control,
wheel,
industry,
maintenance,
engineering,
equipment,
machinery,
metal,
pipe,
system,
pressure,
regulation,
flow,
technical,
factory,
plant,
infrastructure,
safety,
operation,
technician,
manual,
process,
energy,
production,
repair,
service,
mechanism
Deutsch
