Railway Castings, as important load-bearing components in railway systems, have their interior microstructure instantly pinpointing the general performance and repair lifestyle. Metallographic analysis, by revealing the microstructure properties of elements, offers a immediate basis for the quality evaluation of monitor castings. one.Technical ways of metallographic analysis 1.one Met... https://socialcreditu.com/post/9248_with-the-development-of-big-data-the-internet-of-things-and-artificial-intellige.html