balloon
barrel
black
bottle
butane
button
canister
compressed
container
cooking
cylinders
design
eco
energy
equipment
filling
fillup
firing
flammable
friendly
fuel
gas
graphic
house
icons
illustration
industrial
isolated
liquefied
liquid
logo
lpg
methane
oxygen
power
pressure
propane
pump
refill
safety
set
silhouette
simple
station
steel
storage
tank
town
valve