英文關鍵字
action
alloy
bright
burn
business
cast
casting
crane
department
employee
equipment
fabrication
factory
ferrous
fire
flame
foundry
furnace
heat
heavy
hell
hot
industrial
industry
inferno
interior
iron
job
light
liquid
machinery
manufacturing
melting
metal
metallic
metallurgical
metallurgy
mill
molten
plant
pouring
power
production
red
shop
smelting
smoke
steel
welding
work