Railway Castings, as important load-bearing components in railway systems, have their interior microstructure instantly determining the performance and repair daily life. Metallographic Evaluation, by revealing the microstructure characteristics of elements, supplies a immediate basis for the standard assessment of observe castings. one.Specialized ways of metallographic Evaluation on... https://www.bib.az/post/227917_in-curved-sections-or-areas-with-frequent-braking-the-surface-of-the-rail-will-d.html