機器
abrasive
carving
center
circle
cnc grinding
cnc machine
cnc machining
cut gear
cutter
cutting
engine
engineer
equipment
factory
gear manufacturing
gears
grinding machine
industrial
industry
iron
lathe
lubrication
machinery
machining
manufactory
mechanical
mechanical engineering
metal
metal ir
metalwork
metalworking
motor
part
precision
process
production
scale
screw
shaft
sharpening
steel
surface
technology
thread
tool
tooth
turning
work
worm