Railway Castings, as essential load-bearing elements in railway techniques, have their internal microstructure directly determining the 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.Specialized ways of metallographic Evaluation one.one ... https://www.scoop.it/topic/okok0972/p/4168348898/2025/10/10/improve-the-environment-and-passenger-experience