reco - rene
- red edge
- red focus
- red glassy copper
- red hardness
- red heat
- red heat range
- red iron ore
- red lead
- red lead oxide
- red manganese
- red mud
- red ocher
- red oxide of copper
- red oxide of iron
- red rust
- red searing
- red shortness
- red silver ore
- red taphole
- red-brown
- red-hard steel
- red-hardness
- red-shear
- redness
- redox process
- redox reaction
- redrawing
- redrawing pass
- reduce
- reduce sintering
- reduce the swelling power
- reduce to minus 0,5 inch
- reduced curve
- reduced equation
- reduced face
- reduced focal-spot tube
- reduced inspection
- reduced ore
- reduced powder
- reduced pressure