DIN EN ISO 20378-2017 焊材. 非合金和抗蠕变钢气焊用焊条. 分类(ISO 20378:2017);德文和英文版本prEN ISO 20378:2017
Welding consumables - Rods for gas welding of non-alloy and creep-resisting steels - Classification (ISO 20378:2017); German and English version prEN ISO 20378:2017
This standards specifies a classification for the designation of rods for gas welding of non-alloy and creep-resisting steels in terms of the chemical composition of the rod.