英文關鍵字
1080
accuracy
aluminum
automobile
background
belt
bore
circle
circuit
closeup
control
conveyor
cut
cutting
device
drill
engineering
equipment
hiller
hole
industrial
industry
instrument
lathe
linesurface
machine
machinery
machining
manufacture
manufacturing
metal
metallic
mill
milling
part
plane
precision
process
processing
production
spindle
stainless
steel
technology
tool
tooling
treatment
work
workshop