DIFF Subgroup
F16B 4/006 Full Title
Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits (restricted to metal parts or objects B23P11/02); Non-releasable friction-grip fastenings (F16B2/00 takes precedence)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.