erro - fail
- face-contact
- face-gear fixture
- face-grind
- face-grinding machine
- face-hardened steel
- face-mill-type cutter head
- face-milling cutter
- face-milling head
- face-milling job
- face-milling machine
- face-mounted
- face-mounted attachment
- face-mounted reducer
- face-plate lathe
- face-to-face
- face-to-face abutting array
- face-to-face spaced array
- face-to-face spacing
- face-to-face valves
- face-tooth
