Railway Castings, as important load-bearing components in railway methods, have their internal microstructure straight figuring out the functionality and service life. Metallographic Assessment, by revealing the microstructure features of resources, offers a immediate basis for the quality evaluation of monitor castings. one.Technical ways of metallographic analysis 1.one Metallograph... http://www.mysportsgo.com/profile/okok0972/action_id/1513133/show_comments/1