macro etchant
1Metallography — A micrograph of bronze revealing a cast dendritic structure Metallography is the study of the physical structure and components of metals, typically using microscopy. Ceramic and polymeric materials may also be prepared using metallographic… …
2Industrial etching — For other uses, see Etching (disambiguation). Etched in ferric chloride for PCB production at home In industry, etching, also known as chemical milling, is the process of using acids, bases or other chemicals to dissolve unwanted materials such… …
