NF L06-380-21:2003 Aerospace series - Welded and brazed assemblies for aerospace construction - Weldability and beazability of materials - Part 21 : homgeneous assemblies of unalloyed and low alloy steels.
2003NF L06-380-21:2003 Aerospace series - Welded and brazed assemblies for aerospace construction - Weldability and beazability of materials - Part 21 : homgeneous assemblies of unalloyed and low alloy steels.