英文關鍵字
accuracy
automated
burn
business
close
closeup
cnc
cut
cuts
cutter
cutting
danger
different
directions
energy
engineering
equipment
factory
fire
flame
fly
heat
hot
industrial
industry
iron
laser
light
line
machine
machinery
machining
manufacture
manufacturing
material
mechanical
metal
metalwork
metalworking
modern
plasma
precision
process
processing
production
sheet
shop
spark
sparks
steel
tech
technology
tool
welding
work
workpiece
workshop