英文關鍵字
blastfurnace
bright
cast
casting
construction
equipment
factory
fire
flame
flowing
founder
foundry
fumes
furnace
gloves
glow
hard
heat
heavy
helmet
hot
industrial
industry
iron
liquid
man
manufacturing
melting
metal
metallurgy
mill
occupation
plant
pour
power
production
red
smelter
smeltery
smelting
smoke
spark
steel
technology
work
worker