Railway Castings, as important load-bearing factors in railway units, have their inside microstructure right analyzing 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