機器
cutting
cylindrical cutter
engineering
gear
gear hob
gear shaper
gear shaving
gear shaving cutter
hobbing cutter
industrial
industry
involute
lubricant
lubrication
machinery
machining
manufacture
manufacturing
master gears milling cutter
mechanical engineering
metal
metalwork
mwtalworking
oil
precision
processing
production
quality
services
spline hob
steel
technology
tool
tools
working