Railway Castings, as critical load-bearing parts in railway programs, have their inner microstructure straight identifying the functionality and service lifetime. Metallographic Examination, by revealing the microstructure qualities of supplies, presents a direct foundation for the quality assessment of keep track of castings. 1.Technological methods of metallographic Investigation 1.... https://nutritious-twine-caf.notion.site/2881953aad2e80e19ae4f78e076e0ff6?source=copy_link