Railway Castings, as crucial load-bearing parts in railway programs, have their inner microstructure immediately identifying the efficiency and repair daily life. Metallographic Evaluation, by revealing the microstructure properties of elements, gives a immediate basis for the quality evaluation of monitor castings. one.Technical ways of metallographic analysis 1.one Metallographic Ev... https://social.kubo.chat/post/239995_with-the-development-of-big-data-the-internet-of-things-and-artificial-intellige.html