機器
abrasive
abstract
closeup
cnc
cogwheel
complex
cutter
cutting
cylindrical
drill
engineering
factory
gear
gear hob
gears
industrial
industry
involute
iron
lubrication
machinery
machining
manufacture
manufacturing
master gears milling cutter
mechanical
metal
metalwork
metalworking
milling
mwtalworking
power
precision
process
processing
production
quality
services
shaft
sharpening
shaving
spline
spline hob
steel
surface
technology
tool
wheel
work