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DIFF Subgroup Additional Only
F16C 2204/40

Alloys based on refractory metals

Full Title

Metallic materials; Alloys (alloys in general C22C; F16C2206/00 takes precedence) > Alloys based on refractory metals

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.