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This is to certify that your paper entitled «The Effect of Annealing on Joint Strength and Hydroforming Properties of Cold Roll Bonded Aluminium/Copper Clad Sheets» was indexed with 12 pages, in the CIVILICA citation database, code COI:ISCELEC04_036, after evaluation and approval of the referees of the "4th International Congress of Electrical, Computer and Mechanical Engineering held in Tehran 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.