Railway Castings, as key load-bearing parts in railway devices, have their inner microstructure straight figuring out the efficiency and repair daily life. Metallographic Evaluation, by revealing the microstructure traits of products, supplies a direct basis for the standard assessment of observe castings. 1.Complex ways of metallographic Examination one.1 Metallographic Examination https://nutritious-twine-caf.notion.site/2881953aad2e80448848e838cb9eb662?source=copy_link