英文關鍵字
bright
burning
cast
casting
copper
coppersmelting
equipment
factory
fire
flame
flowing
flows
form
foundry
foundryliquid
freight
fumes
furnace
glow
glowing
hard
heat
heavy
hot
industrial
industry
iron
liquid
manufacturing
melting
metal
metallurgy
mill
mold
molding
molds
molten
occupation
ore
plant
pour
poured
pouring
power
process
processing
production
red
smelter
smelting
smoke
spark
sparks
steel
technology
work
worker
works