What the Fledarmus is describing is the preparation of "m,n" nylons, such as nylon 6, 6 or nylon 4, 10 or... as opposed to nylon 6 or nylon 12 or... The former are commonly made by copolymerizing diacids and diamines; the latter are commonly made by ring-opening polymerization of a lactam. In all cases, the numbers refer to the number of carbons in the monomers. You can clearly see that nylon 6 is different than nylon 6,6, and the same goes for nylon 12 vs. nylon 12, 12.
Given your particulars, the aza... is the main component of nylon 12. The other materials are bifunctional and probably serve to crosslink the nylon. They are not components of normal linear nylons.