CPC Main Group
C22C 21/00 Alloys based on aluminium
6 direct subcodes
Child Classifications
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- C22C 21/02 with silicon as the next major constituent
- C22C 21/06 with magnesium as the next major constituent
- C22C 21/10 with zinc as the next major constituent
- C22C 21/12 with copper as the next major constituent