4
1998
.
Ductile iron and steel fittings with parallel thread for pipelines. Union passage elbews. Basic dimensions.
8946-75* (CT 3298-81)
8946-59
14.11.75 2901
01.01.77
, ( 2-93)
90 45 .
CT 3298-81.
( , . 2).
la. 90 :
1 - ;
2 - .
1. 90 . 1 . 1.
. 1
. .
1