Hot finished structural hollow sections of non-alloy and fine grain structural steels - Part 1: Technical delivery requirements; German version EN 10210-1:1994— 19 стр.
Cold formed welded structural hollow sections of non-alloy and fine grain steels - Part 1: Technical delivery conditions; German version EN 10219-1:2006— 39 стр.
Welding - General tolerances for welded constructions - Dimensions for lengths and angles; shape and position (ISO 13920:1996); German version EN ISO 13920:1996— 7 стр.