Railway Castings, as key load-bearing components in railway systems, have their interior microstructure specifically pinpointing the general performance and service lifestyle. Metallographic analysis, by revealing the microstructure properties of resources, offers a immediate basis for the quality evaluation of monitor castings. one.Technical ways of metallographic analysis 1.1 Metall... https://padlet.com/okok0972149980/okok093-p57jo614mu84dt15/wish/v3w8ZwgzRA6gZN52