ANALYSIS OF THE INFLUENCE OF HOT ROLLED PLATE STEEL TREATMENT USING TEMPER AND QUENCHTEMPER METHOD ON VICKERS HARDNESS NUMBER ENHANCEMENT Prof. Ir. Agus Suprapto, MSc, Ph,D., IPMJune 1, 2022Jurnal Post navigation PreviousNext ANALYSIS OF THE INFLUENCE OF HOT ROLLED PLATE STEEL TREATMENT USING TEMPER AND QUENCHTEMPER METHOD ON VICKERS HARDNESS NUMBER ENHANCEMEN