Metallurgy 2 : The art and science of extracting metals form their ores, refining them, and preparing them for use. Can also be the technical details of a metal. (COGWE, SSWID)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}