CPC Subgroup
C25C 3/32 of chromium
Full Title
Electrolytic production, recovery or refining of metals by electrolysis of melts (C25C5/00 takes precedence) > of chromium
C25C 3/32 Electrolytic production, recovery or refining of metals by electrolysis of melts (C25C5/00 takes precedence) > of chromium