DIN EN 10222-4
Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength
废止
发布日期 :
2001-02-01
实施日期 :
DIN EN 1668
Rods, wires, deposits for tungsten inert gas welding of non-alloy and fine-grain steels - Classification
废止
发布日期 :
2001-10-01
实施日期 :