alberto, Del Rosario, and Dr.Kidu Gebrecherkos. 2026. “Optimization of Sand-Casting Process Parameters to Produce Quality Astm-A48 Class 35 Grey Cast Iron Pulleys: Simulation Results”. Ethiopian Journal of Technical and Vocational Education and Training 1 (1). https://doi.org/10.20372/tvet-ftveti-v1i1.75.