DIFF Subgroup
B29B 13/023 Full Title
Conditioning or physical treatment of the material to be shaped (chemical aspects C08J3/00 ) > by heating (B29B13/06, B29B13/08 take precedence)
Of 4 combined children, 0 exist in both systems.
4 codes are CPC-only extensions.
Note: 3 CPC extensions are marked as secondary classification only.