Railway Castings, as vital load-bearing factors in railway devices, have their inner microstructure right deciding the efficiency and repair lifetime. Metallographic Evaluation, by revealing the microstructure characteristics of products, supplies a immediate basis for the standard assessment of observe castings. one.Specialized ways of metallographic Evaluation one.one Metallographic... http://myworldgo.com/profile/okok0972/action_id/3396941/show_comments/1