Are the foster brothers of one's paternal aunt considered paternal uncles through fosterage, and therefore forbidden to her niece?

If your paternal uncle's wife breastfed your father five full feedings during his first two years of life, then she becomes his mother through suckling. Her sons become your paternal uncles through suckling. It is permissible for you to uncover in their presence, and for them to look at what men are permitted to look at of their maharim, such as the palms, head, and neck.