copp - crac
- copper bar
- copper bolt
- copper bond
- copper brazing
- copper factor
- copper gauze wire strainer
- copper hammer
- copper insert
- copper losses
- copper machine
- copper metallurgy
- copper oxide cell
- copper packing
- copper plated
- copper plating
- copper rectifier
- copper segments
- copper sleeve
- copper smithy
- copper space factor
- copper strip bond
- copper tip
- copper zinc cell
- copper-bearing steel
- copper-clad steel
- copper-clad steel wire
- copper-coated steel wire
- copper-covered steel wire
- copper-jacketed coil
- copper-lead bearing
- copper-leaf brush
- copper-oxide rectifier
- copper-plated carbon
- copper-plated steel
- copper-zinc couple
- coppering
- coppering of invoice
- coppering turning
- copperspun rotor
- copying bar
