機器
abstract
closeup
cnc
cnc machine
cogwheel
complex
cut
cut gear
cutter
cutting
cylindrical
detail
engineering
equipment
factory
gear
gear shaper
gears
industrial
industry
involute
lubrication
machinery
machining
manufacture
manufacturing
mechanical
metal
metalwork
metalworking
milling
mwtalworking
power
precision
processing
production
quality
services
shaft
shaving
spline hob
steel
surface
technology
tool
work
working
workshop
worm