Craft magical arms and armor

[Atalius]

At the end of the process is this a Spellcraft check to succeed like Craft wonderous items or is this a Craft check?

[Cavall]

It can be both. You normally do spellcraft but rolling "tailoring" for a cloth chest item, weaving for a magic carpet works just as well.

[Bob Bob Bob]

Magic Item Creation wrote:

To create magic items, spellcasters use special feats which allow them to invest time and money in an item's creation. At the end of this process, the spellcaster must make a single skill check (usually Spellcraft, but sometimes another skill) to finish the item.

Creating Magic Armor wrote:

Skill Used in Creation: Spellcraft or Craft (armor).

Creating Magic Weapons wrote:

Skill Used in Creation: Spellcraft, Craft (bows) (for magic bows and arrows), or Craft (weapons) (for all other weapons).

From this page.