IPC Subgroup
C21B 11/06 in rotary kilns
Introduced: September 1968
Last revised: January 2006
Full Title
Making pig-iron other than in blast furnaces > in rotary kilns
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- METALLURGY OF IRON
- Subclass:
- MANUFACTURE OF IRON OR STEEL