機器
back
background
bolt
business
chemical
choke
construction
control
energy
engineering
equipment
factory
flow
fuel
gas
gasoline
heavy
industrial
industry
metal
natural
nature
object
oil
petroleum
pipe
pipeline
plant
platform
power
pressure
process
production
pump
refinery
regulator
rig
silhouette
steam
steel
technology
tool
tube
up
valve
water
wheel
white
work
定額
Close-up at pipeline valve which is using to control production process in the oil refinery plant. Selective focus at the valve handle wheel, Heavy industrial object photo.の素材 [FY310213840604]
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