機器
alarm
background
battery
connection
control
electronic
emergency
energy
engine
equipment
extinguish
extinguisher
factory
faucet
fighting
fire
flex
fuel
gauge
generator
hose
industrial
industry
measurement
metal
panel
pipe
pipeline
pipelines
piping
power
pressure
prevention
protection
pump
red
safety
security
sprinkler
stainless
station
system
technology
transport
transportation
tube
valve
valves
water