environmental
bright
energy
environment
factory
fire
flame
foundry
furnace
garbage
heap
heat
heavy
industrial
industry
intensive
iron
junk
landfill
manufacturing
melting
messy
metal
metallurgy
molten
new
parts
pile
plant
polluting
pollution
process
production
recycle
recycling
red
remelting
rotors
scrap
scrapyard
smoke
spark
steel
stove
technical
temperature
waste