Pack Version:
1.6.1b

Description:
The recipe for bismuth bronze dust is bismuth dust + brass dust instead of bismuth dust + bronze dust, this could either mean it is supposed to be called bismuth brass, or the recipe is meant to be bismuth dust + bronze dust not brass dust.

Expected Behavior:
Bismuth dust + Brass dust = Bismuth Brass dust or Bismuth dust + Bronze Dust = Bismuth Bronze Dust

It's not a typo; I'm no expert but a quick Google search says bismuth bronze is the common name of the alloy formed with adding some bismuth to a brass.

It's a peculiar metallurgical naming quirk. That said, your version also indicates you're playing Nomi-CEu rather than Nomifactory. You should direct your issue reports to their repository.