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This is to certify that your paper entitled «Multipass Autogenous TIG Welding ofSuper Duplex Stainless Steel» was indexed with 7 pages, in the CIVILICA citation database, code COI:INCWI16_036, after evaluation and approval of the referees of the "The 16th National Conference on Welding and Inspection and the 5th National Conference on Nondestructive Testing held in Yazd 2015.

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.