aluminum
アルミニウム
art
black
bucket
can
clean
container
danger
department
design
disaster
element
emergency
empty
equipment
extinguish
extinguisher
fire
firefighter
fireman
flame
flat
handle
household
icon
illustration
iron
isolated
liquid
metal
metallic
object
pail
pictogram
protection
rescue
safety
sand
service
sign
simple
single
symbol
tool
water
web
work
yellow