英文關鍵字
accuracy
action
automated
automobile
automotive
boring
burn
cnc
cut
cutting
energy
engineering
equipment
fabrication
factory
fire
flames
flat
heat
hot
industrial
industry
iron
laser
machine
machinery
machining
manufacture
manufacturing
material
mechanical
melting
metal
metalwork
plasma
precision
processing
production
safety
sheet
spark
steel
technology
tool
treatment
weld
welding
work
workpiece
workshop