Welding - Electrons and laser beam welded joints; guidance on quality levels for imperfections - Part 1: Steel (ISO 13919-1:1996); German version EN ISO 13919-1:1996— 11 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
