英文關鍵字
blue
boiler
burningout
casting
container
department
device
energy
equipment
factory
fire
flow
founding
foundry
framework
furnace
heat
heater
heavy
home
hot
industrial
industry
interior
iron
liquid
manufacturing
melting
metal
metallurgical
object
open
openhearth
plant
pouring
production
red
release
room
smelting
steel
tank
thermal
unit
warm
whitehot
winter
work
workshop