1. steel pipelines
Author: / issued by Din Deutsches institut fur Normung e.v.
Library: National Library and Archives of Islamic Republic of Iran (Tehran)
Subject: Pipe, Steel - Standards - Germany (west)
Classification :
TS280
.
D55
2. steel pipelines
Author: / issued by Din Deutsches institut fur Normung e.v.
Library: National Library and Archives of Islamic Republic of Iran (Tehran)
Subject: لولههای فولادی-- استانداردها-- آلمان غربی
Classification :
TS
۲۸۰
/
الف
۵ ۱۳۷۸
