英文關鍵字
blacksmith
bright
burn
cutting
dark
detail
engineering
equipment
factory
fire
flame
flicker
foundry
gas
gloves
hand
heat
heavy
hot
industrial
industry
iron
light
manufacturing
material
mechanic
mechanical
melt
melting
metal
metallurgy
metalwork
mill
molten
occupation
plant
production
safety
smelting
steel
technology
tool
weld
welder
welding
work
worker
workshop