DIFF Subgroup Additional Only
F16C 2204/60 Ferrous alloys, e.g. steel alloys
Full Title
Metallic materials; Alloys (alloys in general C22C; F16C2206/00 takes precedence) > Ferrous alloys, e.g. steel alloys
Of 5 combined children, 0 exist in both systems.
5 codes are CPC-only extensions.
Note: 5 CPC extensions are marked as secondary classification only.