英文關鍵字
action
blastfurnace
bright
cast
casting
container
department
factory
fiery
fires
flame
flow
foundry
framework
furnace
glowing
heat
heavy
hot
industrial
industry
iron
ironworks
ladle
liquid
loading
manufacture
melting
metal
metallurgical
metallurgy
mill
mold
molten
open
openhearth
orange
ore
plant
pour
production
railway
red
smelting
smoke
steel
technology
unit
work