Mobile application "Welded seams" is developed for technological support of educational process and represents the electronic grant to a subject "Spetstehnologiya" on a specialty "Technology of welding works".

In this appendix, the classification of welded seams is described, the conventional images and symbols for welded joints are given in accordance with ESKD GOST 2.312-72, as well as the types of welded joints.

There is also a test to consolidate the knowledge gained during the study of the training material in this appendix.