Railway Castings, as crucial load-bearing factors in railway devices, have their inner microstructure straight deciding the efficiency and repair lifetime. Metallographic analysis, by revealing the microstructure characteristics of products, gives a immediate basis for the standard assessment of monitor castings. 1.Complex methods of metallographic Investigation one.1 Metallographic I... https://www.geto.space/post/72624_rail-grinding-this-art-carried-out-amid-sparks-flying-quietly-safeguards-the-hea.html