acid
area
authorized
background
barrel
caustic
chemical
corrosive
cylinder
danger
dangerous
diesel
drum
environment
equipment
fire
flammable
gallon
gas
gasoline
harmful
hazard
icon
industrial
irritant
label
liquid
material
oil
only
personnel
petrol
petroleum
poison
pollution
protection
radiation
risk
safe
safety
sign
sticker
storage
store
substance
sulfuric
symbol
tank
toxic
waste
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