NF L06-380-004*NF EN 4632-004:2013 Aerospace series - Weldability and brazeability of materials in aerospace constructions - Part 004: welding and brazing of homogeneous assemblies of high alloyed steels
2013NF L06-380-004*NF EN 4632-004:2013 Aerospace series - Weldability and brazeability of materials in aerospace constructions - Part 004: welding and brazing of homogeneous assemblies of high alloyed steels