英文關鍵字
action
aluminium
casting
create
equipment
factory
flow
form
format
heat
hot
industry
ingots
iron
labor
liquid
make
manufacture
material
melt
melting
metal
metallurgy
mill
molding
molten
oxygen
plant
plated
pot
pour
precious
process
produce
production
remelting
smeltdown
smelting
spark
steel
technology
work
workshop