英文關鍵字
alloy
blast
bright
cast
castiron
concentrated
copper
create
crucible
factory
fiery
flame
flow
foundry
furnace
glow
heat
heavy
hot
industrial
industry
iron
ladle
light
liquid
melting
metal
metallic
metallurgical
metallurgy
molten
nickel
orange
organization
plant
pour
red
release
smelting
sparks
steam
steel
steelworks
stream
streaming
temperature
white
whitehot
work
works