DIFF Subgroup Additional Only
B23B 2270/20 Internally located features, machining or gripping of internal surfaces
Full Title
Details of turning, boring or drilling machines, processes or tools not otherwise provided for > Internally located features, machining or gripping of internal surfaces
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.