Railway Castings, as vital load-bearing parts in railway programs, have their inner microstructure immediately identifying the functionality and service lifetime. Metallographic Examination, by revealing the microstructure qualities of materials, delivers a direct foundation for the standard assessment of keep track of castings. 1.Complex methods of metallographic Investigation one.1 ... http://myworldgo.com/profile/okok0972/action_id/3396943/show_comments/1