Processing is the beginning of crafting for any player in the game. All it requires are item drops off monsters and checking to see which items can be processed. It's probably the most simplistic of all crafting skills, as you can just go through each item and try produce all to create the items needed for the other crafting skills.
Processings Skill Groups 
Edit
Cast Iron Recipe Edit
This Recipe group has 3 tiers of crafting :
Tier 1 Edit
Uses Hilts, Pikestaves, Sheaths, etc. of Levels 1-3 quality
Tier 2 Edit
Uses Hilts, Pikestaves, Sheaths, 'etc.' of Levels of 4-6 quality
Tier 3 Edit
Uses Hilts, Pikestaves, Sheaths, etc. of Levels of 7-12 quality
