金属産業
alloy
art and craft
business finance and industry
carbon dioxide
cast iron
casting
construction industry
craft
engineering
factory
ferrous sulfate
filling
fire natural phenomenon
flame
foundry
furnace
glowing
heat temperature
heavy
improvement
industrial building
industry
iron metal
irony
liquid
making
manufactured object
manufacturing
melting
metal
metallic
metallurgy
metalwork
mill
molding a shape
molten
no people
occupation
pouring
sparks
steel
steel mill
steelmaking
technology
vat
working
workshop
yellow