background
barrel
blue
chemical
chemistry
container
danger
diesel
drum
ecology
energy
engineering
environment
equipment
factory
fluid
frame
fuel
gallon
gas
gasoline
hazardous
industrial
industry
liquid
manufacturing
material
metal
object
oil
outdoor
petrol
petroleum
pipe
plant
plastic
pollution
power
production
safety
steel
storage
symbol
tank
technology
toxic
tube
warehouse
waste
white
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