英文關鍵字
factory
industry
metal
manufacturing
sheet
steel
equipment
iron
machine
production
industrial
business
technology
engineering
workshop
work
construction
conveyer
control
fire
heat
heavy
manufacture
metalwork
roller
closeup
plant
automated
machinery
mechanical
motion
automatic
hot
metallurgy
mill
rolling
cutting
automotive
bending
hole
pollution
process
professional
robot
temperature
workin
coil
roll