英文關鍵字
abrasive
accuracy
carbide
circle
cnc
detail
diamond
disk
engineer
engineering
equipment
fabric
factory
finishing
flying
foundry
grinder
grinding
grindstone
hole
industri
industry
iron
lathe
machine
machinery
machining
manufacture
manufacturing
metal
metalwork
metalworking
plant
precise
precision
production
rotating
saw
sharpening
spark
sparkle
steel
stoning
surface
technology
tool
weld
wheel
work
workshop