alarm
alert
background
building
checking
connection
construction
control
danger
emergency
equipment
extinguish
extinguisher
extinguishing
faucet
fighting
fire
fire hydrant
firefighter
gauge
hazard
holding
industrial
industry
measurement
metal
office
panel
pipe
pipeline
precaution
pressure
prevent
prevention
professional
protection
pump
red
safety
security
service
sprinkler
system
technology
tube
valve
wall
warning
water
watercourse
定額
Red tanks of fire extinguisher in the fire extinguishing system. Valves in water sprinkler system. Industrial fire protection. Fire extinguishing system in industry.の素材 [FY310152833859]
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