Railway Castings, as important load-bearing factors in railway units, have their inside microstructure specifically analyzing 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 Metall... https://www.bondhuplus.com/post/954417_rail-grinding-this-art-carried-out-amid-sparks-flying-quietly-safeguards-the-hea.html