Yes he makes the same items, from the recipe scroll you got in chapter 1, only more powerful (ie instead of +1, he makes +2 - NOT +3 so if you give him say, a +3 longsword, the longsword he makes will only be +2 so it's better to give him a +2 and not waste the +3 sword). You can find some of the extra items, but not all. For example, I think there's no adamantite after chapter 1.
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