英文關鍵字
action
background
bright
casting
concept
danger
dark
environment
factory
fires
flame
foundry
furnace
glowing
heat
heavy
high
hot
industrial
industry
intense
interior
iron
ladle
light
liquid
manufacture
melting
metal
metallic
metallurgical
metallurgy
mill
molten
orange
ore
plant
pour
production
red
shiny
smelting
smoke
spark
sparkles
steel
steelwork
technology
work