Guild Wars 2

Does this help at all?

http://wiki.guildwars2.com/wiki/Crafting

1) Materials have minimum ratings. If your crafting rating isn’t high enough to use it, you don’t see it even if you have it.

2) As you increase your rating certain basic recipes will become available. Others you can learn by buying recipes. Always check any of the quest providers (guys with the heart) once you finished them, some sell recipes for Karma. So do crafting masters. Others you will need to find via the discovery process. Note it won’t tell you which ingredient you are missing. Some mats can only be bought from crafting masters such as water or tin.

3) Only Jewelers refine copper into ingots. However a number can make bronze if you buy tin.

4) It is an account wide bank for materials. You can send stuff there while in the field via the options button (gear) on your inventory screen. Select “Deposit all Collectables” and all crafting materials are sent there. Maximum is 250 per item.

5) No. When crafting anything on you or in the the collection tab will be usable via the production or discovery tab. You do not need to put materials into the bank. This is only true with materials, sub assembles need to be in inventory to work, like sword hilt or staff head, and not the bank.