Credits Rend
Hello all. I present to you the NPC crafter / exchanger. With it you can easily make a new profession or just turn it into exchanger anything. Most importantly his dignity is the ability to quickly change any recipe without creating unnecessary vendors and patches to the client. Below is a link to a video where you can learn in detail about his work.

This is my first big script so provided as is.
Code
Craft_system table





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