corr - crys
- crowfeet
- crowfoot
- crowfoots
- crown
- crown adjustment
- crown blast
- crown brick
- crown control
- crown gear
- crown of roof
- crowned barrel
- crowned roll
- crowning
- crozzling coal
- cru
- crucible
- crucible belly
- crucible charge
- crucible furnace
- crucible fusion
- crucible lining
- crucible melting
- crucible melting furnace
- crucible pedestal
- crucible process
- crucible skull
- crucible steel
- crucible stood
- crucible tongs
- crucibleless vacuum melting
- cruciform joint
- cruciform test specimen
- crude
- crude gas main
- crude metal
- crude nickel
- crude ore
- crude product
- crude solution
- crude steel