1. Welding 4: selected standard for training welders
Author: Issued by DIN Deutsches Institut fur Normung e.v., DVS erband fur SchweiBen und verwandte Verfahren e. v.
Library: Central Library and Documents Center of Industrial University of Khaje Nasiredin Toosi (Tehran)
Subject: Standards ، Welding,Testing ، Welded joints
Classification :
TS
227
.
W455
