Railway Castings, as important load-bearing factors in railway units, have their interior microstructure specifically pinpointing the performance and repair daily life. Metallographic Evaluation, by revealing the microstructure traits of materials, delivers a direct foundation for the quality assessment of keep track of castings. 1.Technological methods of metallographic Assessment 1.... https://nutritious-twine-caf.notion.site/2881953aad2e80e19ae4f78e076e0ff6?source=copy_link