M. Rabie, H. O. Abd. Elazeem, A. M. Abd-Allah, Y. Al_Sayed, M. I. Abdel Malak, A. A. Saber, M. A. Awad, K. M. Adel, Y. M. Ahmed, Sh. R. Mohamed and M. A. Abdelrahman 2022. Study the Tribology Characteristics of HDPE Reinforced by Al2O3 and CNTs. International Journal on Recent Technologies in Mechanical and Electrical Engineering. 9, 3 (Sep. 2022), 59–66. DOI:https://doi.org/10.17762/ijrmee.v9i3.374.