英文關鍵字
automatic
cnc
laser
cutting
machine
work
sheet
metal
spark
factory
plant
metalworking
industry
machining
industrial
equipment
technology
manufacturing
concept
slowmotion
workpiece
fiber
light
cutter
steel
accurate
pattern
blaze
tool
closeup
plate
metalwork
danger
workshop
accuracy
production
flame
cut
lasercut
green
yellow
orange
nobody
sparkle