UPDATED: August 11, 2016
As the title says, I am buying and selling TF2 keys for refined metal.
Sell price: 19.66 ref (amount you pay me)
Buy price: 19.55 ref (amount I pay you)
Here is my bot's trade offer link: https://steamcommunity.com/tradeoffer/n ... n=Iw8Zh8h4
It will work with any combination of refined, reclaimed, and scrap, so you don't need to worry about that part.