Ulbrich, Dariusz, Zbigniew Strumiński, Jakub Kowalczyk, and Daria Stępak. “Evaluation of Spot Welding Joints by Ultrasonic Method”. Welding Technology Review 90, no. 12 (December 10, 2018). Accessed December 22, 2024. https://pspaw.pl/pspaw/article/view/985.