DIFF Subgroup Additional Only
C03B 2201/20 doped with non-metals other than boron or fluorine
Full Title
Type of glass produced > Doped silica-based glasses > doped with non-metals other than boron or fluorine
Of 5 combined children, 0 exist in both systems.
5 codes are CPC-only extensions.
Note: 5 CPC extensions are marked as secondary classification only.