Butovskiy P.M, Palvannazirova N. EXPERIMENTAL STUDY AND OPTIMISATION OF TECHNOLOGICAL PARAMETERS OF ULTRASONIC WELDING OF SYNTHETIC POLYMERIC MATERIALS . ilmiy [Internet]. 2024 Jun. 22 [cited 2024 Sep. 19];40(6):19-25. Available from: http://tadqiqotlar.uz/index.php/new/article/view/4011