هترة ع, سلامة ا, الضاهر ن. Improving Mechanical Properties (Impact Strength and Wear Resistance) of Drilling Teeth Steel and Breakers Hammersr. Tuj-eng [Internet]. 2021May9 [cited 2024May5];43(2). Available from: http://www.journal.tishreen.edu.sy/index.php/engscnc/article/view/10552