background
black
bright
cast
casting
dark
energy
extraction
factory
fire
flame
flow
foundry
furnace
gold
heat
heavy
hot
industrial
industry
ladle
light
liquid
manufacturing
melt
melting
metal
metallurgical
metallurgy
mill
molten
person
plant
pour
power
precious
production
red
russia
siberia
smelt
smelter
smelting
spark
steel
work