英文關鍵字
bar
beam
burning
casting
factory
flame
forge
forged
forging
foundry
glowing
hammer
hammering
heat
heated
heavy
hit
hot
impact
industrial
industry
iron
knock
machine
machinery
manufacturing
metal
metallic
metallurgic
metallurgical
metalwork
modelling
molding
molten
plant
press
smelted
sparks
steel
strike
work
workshop