4
. .
8943-75
1998
Ductile iron and steel fittings with parallel thread for pipelines. Nomenclature
8943-59
14.11.75 2901
01.01.77
, ( 2-93)
1. , , - ( ) , , (, , .), 175 : 1,6 (=16 /2) D 40 1 (=10 /2) D 50-100 .
2. .
02.07.2015
