fric - gate
- friction
- friction angle
- friction box
- friction brake
- friction calender
- friction clutch
- friction coefficient
- friction composition
- friction compound
- friction coupling
- friction disk
- friction drag
- friction drive
- friction factor
- friction force
- friction gear
- friction head
- friction heat
- friction loss
- friction pressure drop
- friction ratio
- friction reducer
- friction reducing coating
- friction reduction
- friction roller
- friction slip
- friction stock
- friction stock scrap
- friction surface
- friction tape
- friction test
- friction wear
- friction welding
- friction work
- frictional
- frictional coefficient
- frictional flow
- frictional force
- frictional heat resistance
- frictional loss
