Railway Castings, as crucial load-bearing components in railway systems, have their interior microstructure instantly determining the performance and repair existence. 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 one.o... https://www.bib.az/post/227770_rail-grinding-this-art-carried-out-amid-sparks-flying-quietly-safeguards-the-hea.html