機器
blue
boiler
closed
control
device
dial
energy
engineering
equipment
fitting
fluid
four
fuel
gas
gauge
group
heat
hydraulic
industrial
industry
install
instrument
line
manometer
measure
measurement
metal
meter
needle
nobody
oil
part
pipeline
power
pressure
pump
row
steel
stress
tap
technological
technology
tool
valve
work
定額
Closeup of manometerの素材 [FY31030991714]
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