Railway Castings, as important load-bearing components in railway units, have their interior microstructure specifically analyzing the effectiveness and service life. Metallographic Investigation, by revealing the microstructure qualities of supplies, presents a direct foundation for the standard assessment of track castings. 1.Specialized ways of metallographic Evaluation one.one Met... https://www.vevioz.com/post/1839292_this-is-the-periodic-wear-on-the-top-surface-of-the-rail-resembling-waves-when-t.html