Railway Castings, as crucial load-bearing elements in railway techniques, have their internal microstructure directly determining the performance and repair lifestyle. Metallographic Assessment, by revealing the microstructure properties of resources, offers a immediate foundation for the quality evaluation of track castings. one.Technical methods of metallographic Assessment 1.one Me... https://friendstrs.com/post/166385_with-the-development-of-big-data-the-internet-of-things-and-artificial-intellige.html