Railway Castings, as crucial load-bearing elements in railway techniques, have their internal microstructure straight identifying the efficiency and repair daily life. Metallographic Evaluation, by revealing the microstructure characteristics of products, gives a immediate basis for the standard assessment of monitor castings. one.Specialized ways of metallographic Evaluation one.one ... https://www.speakfreelee.com/post/77976_with-the-development-of-big-data-the-internet-of-things-and-artificial-intellige.html