Al-Dulaimi S. Study of the effect of silica fill ratio on some mechanical properties and electrical conductivity of styrene-peptadiene / silica rubber. EDUSJ [Internet]. 2007 Jan. 1 [cited 2025 Aug. 8];19(1):155-6. Available from: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/24291