00616naa#a2200205#i#450# EN\\bibl\33681 20250113014256.1 1609-3178 20191205b2019####ek#y0engy0150####ca RU Flaw Detector A1550 IntroVisor for Testing of Non-Standard Welding Joint Journal article Saint-Petersburg LLC SVEN 2019 4 с. Journal article local Meleshko Nataliya Vladimirovna Gazizova Gulphira G. Abramenko Denis N. Mariin Maksim A. Konnova Ekaterina S. zh-szf.ru