Baloch, Muhammad Ali Shar. Effect of vacuum heat treatment process on toughness and wear of H13 tool steel / Muhammad Ali Shar Baloch. - MUET, Jamshoro : Metallurgy and Materials Engineering, 2013. - vii, 36p. : ill. ; 30 cm. Includes References. Subjects--Topical Terms: Materials Science and Technology. Dewey Class. No.: / BAL