The Augmented Ironworks/Ironworks gear in the english patch notes is a typo.
The i190 gear is simply called Ironworks, without the Augmented part, and is crafted.
The i170 gear is called Carbonweave, not Ironworks, and is also crafted.

The "Augmented <i180 gear name>" is gear that uses the gob cups/dice to be upgraded. (Example: Millkeeper's Saw (i180) -> Augmented Millkeeper's Saw (i200) )