Ключевые слова:
Ultrasonic testing, Steels, Angles (geometry), Amplitude, Patterns, Test specimens, Non-destructive testing, Surface properties, Probes, Acceptance (approval), Surfaces, Consumer-supplier relations, Shape, Testing conditions, Ferritic steels, Forgings, Sensitivity, Depth, Dimensions, Austenitic steels, Classification systems, Thickness, Stainless steels, Reverberation, Grades (quality), Quality, Test equipment