Analysis of Micro Structure, Porosity Disability and Wear Resistance with Volume Variation from Riser On the Engine Cover of Electric Motors. J. Electr. Tech. Explor. [Internet]. 31 Tháng Chạp 2023 [cited 25 Tháng Tám 2026];1(2):77-86. Available at: https://shmpublisher.com/index.php/joetex/article/view/282