英文關鍵字
action
black
blast
boiling
bright
cast
caster
casting
concept
create
crucible
equipment
factory
fire
fires
flame
flowing
foundry
furnace
heat
heavy
high
hot
industrial
industry
iron
ladle
liquid
manufacturing
material
melting
metal
metallurgy
mill
molten
plant
pour
power
production
red
shiny
smelting
sparks
steam
steel
steelworks
technology
work
yellow