DIN 7647-1:1969-12

Отменен

Brazed and welded pipe unions with spherical liners; equal and unequal end hexagon nipples with parallel male thread for union nuts — 2 стр.

Заменен на

DIN 7647:1985-01

ICS

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