IPC Subgroup
C21B 5/02 Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
Introduced: September 1968
Last revised: January 2006
Full Title
Making pig-iron in the blast furnace > Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- METALLURGY OF IRON
- Subclass:
- MANUFACTURE OF IRON OR STEEL