機器
business
chemical
connection
control
crane
danger
device
distribution
emergency
energy
engineering
equipment
extinguishing
factory
faucet
fuel
gas
hose
industrial
industry
line
metal
module
off
oil
pipe
pipeline
power
pressure
production
protection
pump
refinery
rescue
safety
section
shut
shutoff
station
steel
structure
switch
system
technology
tube
valve
water
work
yellow
定額
Shut-off device of the gas pipeline in emergency areas. Yellow gas pipe with valve on the background of green trees in the parkの素材 [FY310213359802]
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