英文關鍵字
action
blast
bright
cast
casting
construction
container
department
environment
equipment
factory
fire
flame
flow
founding
foundry
furnace
gloves
hearth
heat
heavy
hot
industrial
industry
interior
iron
light
liquid
man
manufacturing
melting
metal
metallurgical
metallurgy
molten
occupation
openhearted
ore
plant
production
red
smelter
smelting
smoke
spark
steel
stove
technology
work
workshop