Aromatic polyamines and their derivatives; salts thereof
Aromatic polyamines and their derivatives; salts thereof (excl. ophenylenediamine, mphenylenediamine, pphenylenediamine or diaminotoluenes and their derivatives, and salts thereof)
Ophenylenediamine, mphenylenediamine, pphenylenediamine or diaminotoluenes and their derivatives; salts thereof