background
box
building
cabinet
connect
danger
emergency
equipment
extinguish
extinguisher
fire
firefighter
firehouse
fireman
first
high
hose
hosepipe
hydrant
isolated
macro
material
new
object
pipe
pipeline
plumbing
pressure
protection
pump
red
rescue
roll
safe
safety
security
sign
station
stored
strap
texture
tube
urgency
valve
wall
water
white