英文關鍵字
acryl
acrylic
automated
chopper
cnc
computer
control
cut
cutter
cutting
design
engineering
engraving
equipment
factory
heat
industrial
industry
inscription
laser
light
machine
machinery
manufacturing
material
metal
milling
numerical
pattern
plasma
plate
plexiglass
precision
printing
production
red
sheet
sign
smoke
spark
sparks
technology
tool
transparent
vapour
welding
work