英文關鍵字
and
beam
billet
blacksmith
blast
bowl
bright
casting
crane
crucible
energy
engineering
factory
fire
flame
foundry
furnace
fusible
heat
heavy
industry
ingot
iron
liquid
luster
machine
manufacturing
mechanical
melting
metal
metallurgy
metalworking
molten
moving
orange
production
profession
red
shop
smoke
sparks
spray
steel
steelworker
stone
technology
temperature
workshop