英文關鍵字
alloy
boiling
cast
casting
cooling
ductile
factory
fire
flame
foundry
fuel
furnace
heat
heavy
hot
industrial
industry
intense
iron
ladle
line
manufacture
manufacturing
melting
metal
metallurgy
mill
molten
orange
ore
organization
plant
pot
pouring
power
processing
production
red
rolled
smelting
spark
steel
stove
technology
temperature
transport
yellow