IPC Subgroup
C21B 9/14 Preheating the combustion air
Introduced: September 1968
Last revised: January 2006
Full Title
Stoves for heating the blast in blast furnaces > Preheating the combustion air
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- METALLURGY OF IRON
- Subclass:
- MANUFACTURE OF IRON OR STEEL