00459nam a22001817a 4500 OSt 20230320154743.0 230320b |||||||| |||| 00| 0 eng d Chuka University library SBL TA 403 .K486 2017 Khurmi, R.S Materials science/ New Delhi S.Chand 2017 367p. Material science 9126 Sedha,R.S. 9127 lcc BK 0 13968 13968