機器
accuracy
alloy
automated
automotive
bit
close up
cnc
cut
cutter
cutting
detail
drill
drilling
engineering
equipment
factory
head
heavy
hole
horizontal
industrial
industry
iron
lathe
machinery
machining
manufacture
manufacturing
mechanical
metal
metallic
metalwork
mill
milling
no people
part
precision
process
processing
production
steel
technology
tool
tooling
turning
work
workshop