英文關鍵字
blast
burn
casting
color
construction
department
equipment
factory
fire
flame
foundry
fuel
furnace
heat
heavy
high
hot
industrial
industry
interior
iron
light
liquid
manufacture
manufacturing
melting
metal
metallurgy
mill
mobile
molten
moving
open
orange
plant
pollution
pouring
production
red
smelting
steel
temperature
unit
welding
work