In what chapter in the manga series The Fullmetal Alchemist did Winry meets Rose?

Winry Rockbell and Rose do not meet in the *Fullmetal Alchemist* manga. Rose is a character who only appears in the *Fullmetal Alchemist: Brotherhood* anime, specifically in the "The Promised Day" arc.

While the anime and manga generally follow similar storylines, there are significant differences in certain arcs and characters.