Improving the Wear Resistance of D2 Tool Steel by Deep Cryogenic Treatment and Secondary Hardening Fouad Abudaia Faculty of engineering، Tripoli University Enas Fessatwi Engineer at Advanced Center of Technology، Tripoli pdf (English) منشور 2019-10-02 إصدار عدد 10 (2016): الاستاذ القسم الأبحاث