rene - rive
- retained austenite
- retaining flight
- retaining power
- retaining vessel
- retardant
- retarded combustion
- retarded cooling
- retempering
- retention of alloying additions
- reticular
- reticular density
- reticular structure
- retigraph
- retool
- retort
- retort calcinating oven
- retort furnace
- retort oven
- retort process
- retort residue
- retorting
- retractable belt wrapper
- retractable conveyor
- retractable guide
- retractable ingot mold
- retractable oxygen lance
- retractable rod
- retreatment cell
- return
- return circuit
- return cylinder
- return force
- return motion
- return pass
- return piping
- return port
- return scrap
- return slag
- return stroke
- return undersized sinter