Glossary C
Convenience products are merchandise that is purchased frequently, without advance planning, including staples, impulse items, and emergency items.
Combined rotary-percussion is the term used to describe the utilisation of different modes of kinds of drilling. It normally embraces percussion and rotary methods of drilling. (see percussion drilling and rotary drilling).
Coke oven gas is described as the mixture of permanent gases produced by the carbonization of coal in a coke oven at temperatures in excess of 1,000 degrees Celsius.