
The frequency of new versions of Nadca 207 is increasing, now the version is :2025. Most of the changes are cosmetic, they are corrections of grammatical errors or improvements in explanations. The only thing that is important is that more and more steels are being added. An interesting steel is TGE-23, the Indian equivalent of Dievar, remelted twice. Once ESR and once VMR. That is, under slag and still in vacuum.
Group C
Group D
Jiří Stanislav
May 25, 2025