英文關鍵字
alloy
boiling
bright
burner
casting
conveyor
ductile
engineering
factory
fire
flame
foundry
fuel
furnace
generation
heat
heavy
hot
industrial
industry
iron
ladle
lit
manufacture
manufacturing
melting
metal
metallurgy
mill
molten
orange
organization
plant
pot
pouring
power
processing
production
raw
red
slab
sparks
steel
stove
technology
temperature
yellow