英文關鍵字
action
automated
beam
blaze
burning
business
closeup
cnc
construction
cutting
danger
details
digitally
energy
engineering
equipment
fabrication
factory
heavy
horizontal
industrial
industry
iron
laser
light
machine
machinery
manufacturing
melting
metal
metallic
metallurgy
metalwork
operation
order
plasma
plasmacutting
precision
processing
product
production
robot
science
sheet
spark
steel
technology
work
workpiece