Destructive tests on welds in metallic materials. Hardness testing of narrow joints welded by laser and electron beam (Vickers and Knoop hardness tests)— 26 стр.
25.160.40 Welded. Including welding position and mechanical and non-destructive testing of welded joints / Сварочные швы. Включая положение шва и механические и неразрушающие испытания сварных соединений
