Close up of a hand in gloves adjusting a barometer of a nitrogen cylinder or compressed air
Keywords
cylinder,
barometer,
gauge,
industrial,
pressure,
gas,
tank,
oxygen,
air,
nitrogen,
compressed,
bottle,
equipment,
technology,
steel,
laboratory,
regulator,
valva,
closeup,
manometer,
machine,
bar,
tool,
argon,
knob,
vacuum,
helium,
biotechnology,
mechanical,
hydrogen,
science