CPC Subgroup
C05B 13/02 from rock phosphates (C05B13/06 takes precedence)
Full Title
Fertilisers produced by pyrogenic processes from phosphatic materials > from rock phosphates (C05B13/06 takes precedence)
C05B 13/02 Fertilisers produced by pyrogenic processes from phosphatic materials > from rock phosphates (C05B13/06 takes precedence)