It evolves at level 33.
The Pokemon Bronzor evolves due to level, and so affection doesn't have to be high, and he doesn't have to be holding anything. (Technically it is an "it," not a he, since Bronzor is genderless.) Bronzor evolves into the Pokemon called Bronzong at level 33. It remains a Steel-Psychic type after it evolves.
33
It's possible that your bronzor is holding an everstone, which will prevent Pokemon from evolving, even if they meet the correct conditions.
Bronzor evolves into Bronzong at level 33. Hope I helped.
88
30
Lv 33 :)
LvL 33
Level 43
Level 64
You don't need a stone. Bronzor evolves at level 33. If you don't belive me, check Serebii.
To evolve Mantyke in pokemon black/white 2 you have to level it up with a remoraid in your party then it will evolve into mantine