機器
asphalt
brigade
bright
closeup
construction
copy space
curve
danger
department
detail
emergency
engine
equipment
faucet
fire
fire brigade
fire service
fire truck
firefighter
firefighting
firetruck
gear
hose
hydrant
industrial
industry
liquid
metal
nobody
old
outdoors
part of
pipe
pressure
protection
pump
red
rescue
roll
safety
security
technology
tool
truck
tube
valve
water
white