For citations:

Kosarina E.I., Mikhaylova N.A., Krupnina O.A., Demidov A.A. X-RAY CONTROL OF WELDED JOINTS ACCORDING TO GOST AND ISO SYSTEMS. Industrial laboratory. Diagnostics of materials. 2019;85(6):37-41. (In Russ.) https://doi.org/10.26896/1028-6861-2019-85-6-37-41