air gauge
background
boiler
brass
building
closeup
connection
construction
control
device
energy
engineer
engineering
equipment
factory
faucet
fitting
flow
gas
gauge
hvac
indicator
industrial
industry
instrument
manometer
measure
measurement
metal
meter
pipe
pipeline
piping
plumber
plumbing
power
pressure
pump
service
steamgauge
steel
supply
system
technology
thermostat
tool
tube
valve
water
定額
The equipment of the boiler-house, - valves, tubes, pressure gauges, thermometer. Close up of manometer, pipe, flow meter, water pumps and valves of heating system in a boiler room.の素材 [FY310118396463]
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