rene - rive
- ring-packed tower
- ring-roll press
- ring-rolling mill
- ring-shaped channel
- ring-shaped crucible
- ring-shaped induction furnace
- ring-shaped magnet
- ring-type cold-strip mill
- ring-type crusher
- ringed roof
- rinse bath
- rinse box
- rinse section
- rinser
- ripper die
- ripple
- ripple mark
- ripple markings
- ripple weld
- rippled edge