Munosibov, S., Usmankulov, O., Ilkhamov , M., & Kholdaraliyev , D. (2025). INVESTIGATION OF THE PURIFICATION PROCESS OF PLATINUM POWDER FROM IMPURITIES. Techscience Uz - Topical Issues of Technical Sciences, 3(5), 87–96. https://doi.org/10.47390/ts-v3i5y2025N12