Ключевые слова:
Rectangular shape, Visual inspection (testing), Metal coatings, Thickness, Steels, Numerical designations, Classification systems, Hardness, Blocks, Defects, Fracture, Non-destructive testing, Dimensional tolerances, Dimensions, Design, Penetrant flaw detection, Macroscopic examination, Test specimens, Angles (geometry), Control samples, Penetrants, Identification methods, Surface treatment