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This is to certify that your paper entitled «Evaluation of the effect of 4 wt.% Si and 1 wt.% Mg addition on solidification, microstructure, mechanical and wear properties of Al-15Sn bearing alloy» was indexed with 14 pages, in the CIVILICA citation database, code COI:IMES14_001, after evaluation and approval of the referees of the "9th International Conference & Exhibition on Materials Science & Metallurgical Engineering (iMat2020) 2020.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.