英文關鍵字
activity
alloy
aluminum
anvil
blacksmith
bladesmith
circular
clip
craft
employee
eyeglasses
factory
fire
footage
foundry
furnace
hammer
heat
hitting
hot
industrial
industry
iron
machine
male
man
manufacturing
metal
metallurgy
motion
people
rebar
rod
safety
shot
skill
slow
sparks
steel
tool
vdo
video
welder
worker