英文關鍵字
factory
iron
manufacturing
manufacture
foundry
craftsmanship
process
skill
foundryman
thermodynamics
engineering
molten
industrial
bright
smelt
labor
occupational
hot
forge
liquid
workers
heat
smelting
metal
automation
furnace
steel
fabrication
fire
glow
plant
metalurgy
heavy
flow
casting
work
metallurgical
alloy
operation
technology
industry
metalwork
hightemperature
pour
equipment
workshop
industrialization
metallic
production
precision