英文關鍵字
accuracy
bore
carbide
closeup
cnc
cutter
cutting
detail
dial
disc
engineering
equipment
factory
grinder
grinding
industrial
industry
instrument
iron
lathe
machine
machinery
machining
manufacture
manufacturing
measuring
metal
metalwork
meter
micro
mill
milling
oil
operation
precision
process
processing
production
rotation
setup
shaft
steel
technology
tool
tooling
turning
vernier
wheel
work
workshop