英文關鍵字
blacksmith
blast
casting
coal
container
equipment
factory
fire
founding
foundry
furnace
hangar
hearth
heat
heavy
hot
indoor
industrial
industry
interior
iron
light
liquid
manufacturing
melting
metal
metallurgical
metallurgy
mill
open
pipe
plant
pouring
power
production
red
room
shop
smelting
sparkle
steel
tank
tube
warehouse
whitehot
work
workshop
yellow