Railway Castings, as key load-bearing elements in railway devices, have their interior microstructure directly deciding the general performance and repair life. Metallographic analysis, by revealing the microstructure qualities of resources, supplies a direct foundation for the standard assessment of track castings. one.Complex methods of metallographic Evaluation one.1 Metallographic... https://www.scoop.it/topic/okok0972/p/4168348898/2025/10/10/improve-the-environment-and-passenger-experience