Railway Castings, as crucial load-bearing components in railway systems, have their interior microstructure specifically pinpointing the performance and repair existence. Metallographic analysis, by revealing the microstructure properties of elements, gives a immediate basis for the standard evaluation of monitor castings. one.Technical ways of metallographic analysis 1.one Metallogra... https://www.friend007.com/post/558827_this-is-the-periodic-wear-on-the-top-surface-of-the-rail-resembling-waves-when-t.html