clas - coin
- clockhouse
- clog
- clogging
- close
- close annealing
- close continuous mill
- close fit
- close sampling
- close sizing
- close texture
- close tolerance forging
- close-annealed
- close-burning
- close-coupled edger
- close-cut fraction
- close-grained (pig) iron
- close-packed direction
- close-packed face
- close-packed hexagonal
- close-packed layer
- close-packed liquid
- close-packed rows of atoms
- close-tolerance casting
- close-top mold
- closed bottom mold
- closed box groove
- closed circuit
- closed circuit deduster
- closed die
- closed die forging
- closed gamma field
- closed groove
- closed joint method
- closed pass
- closed population
- closed riser
- closed root
- closed sand mold
- closed shell configuration
- closed stand