DIFF Subgroup
C21D 5/02 improving the malleability of grey cast-iron
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Heat treatment of cast-iron > improving the malleability of grey cast-iron
CPC:
Heat treatments of cast-iron > improving the malleability of grey cast-iron
No child classifications to compare. This is a leaf node in both IPC and CPC.