DIFF Subgroup
B23K 20/233 without ferrous layer
Introduced: January 1990
Full Title
Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating > taking account of the properties of the materials to be welded > without ferrous layer
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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