bright
bronze
casting
craft
crucible
cup
dark
detail
engineering
equipment
factory
ferrous
fill
fire
flame
flow
flowing
foundry
furnace
gold
heat
heavy
hot
illumination
industrial
industry
iron
job
ladle
liquid
manufacturing
material
melt
metal
metallic
mill
molten
object
orange
pour
red
smelt
smoke
spark
steel
technology
tool
work
workshop
yellow