燃やす
alloy
equipment
factory
ferrous
fire
flame
flow
foundry
furnace
heat
heavy
hot
icon
illustration
industrial
industry
iron
ladle
liquid
manufacture
manufacturing
material
melting
metal
metallic
metallurgical
metallurgy
mining
molten
ore
outline
pictogram
plant
pot
pour
process
production
smelter
smelting
steel
steelworker
stove
symbol
technology
temperature
thin
work
workshop