機器
911
alarm
car
chrome
closeup
connector
danger
department
detail
emergency
engine
equipment
extinguishing
fighting
fire
firefighter
fireman
firetruck
gauge
gear
help
hose
hydrant
industrial
job
metal
modern
montage
nozzle
pipe
plug
pressure
protection
pump
red
rescue
safety
security
service
suppression
technology
tool
transport
truck
tube
valve
vehicle
water
work