Railway Castings, as essential load-bearing factors in railway units, have their inside microstructure straight deciding the functionality and service everyday living. Metallographic Investigation, by revealing the microstructure features of components, offers a immediate foundation for the quality evaluation of monitor castings. one.Technical ways of metallographic analysis 1.one Met... http://myworldgo.com/profile/okok0972/action_id/3399809/show_comments/1