Railway Castings, as vital load-bearing parts in railway programs, have their inner microstructure straight figuring out the overall performance and repair existence. Metallographic analysis, by revealing the microstructure characteristics of elements, gives a immediate basis for the standard evaluation of monitor castings. one.Technical ways of metallographic analysis 1.one Metallogr... https://www.scoop.it/topic/okok0972/p/4168348898/2025/10/10/improve-the-environment-and-passenger-experience