英文關鍵字
alloy
automotive
billet
chill
closeddie
closeup
detail
drophammer
edged
factory
fire
forge
forging
fume
glove
glow
hand
hardening
harding
heat
heated
heavy
high
hot
industrial
industry
iron
manufacturing
material
metal
metalworking
processes
processing
product
production
punch
quenching
red
redhot
smelting
smith
smoke
steam
steel
temperature
tool
working
workplace
workshop