DIFF Subgroup
C04B 18/023 Full Title
Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone (use of waste materials for the manufacture of cement C04B7/24); Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone > Agglomerated materials
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.