DIN 28031:1978-06

Отменен

Welded shell flanges for vessels and equipment of carbon and alloy steel not subject to pressure — 2 стр.

Заменен на

DIN 28031:1989-02

ICS

23.040.60 Flanges, couplings and joints / Фланцы, муфты и соединения

71.120.10 Reaction vessels and their components / Реакторы и их компоненты