DIFF Subgroup Additional Only
C04B 2237/52 Pre-treatment of the joining surfaces, e.g. cleaning, machining
Full Title
Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating > Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating > Pre-treatment of the joining surfaces, e.g. cleaning, machining
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.