I want to trade my armor but it already open after I craft it?

maybe its not rare enough,so maybe try to modified it in the fuse machine and if its rare..ya should be able to sell it =)

Also it will automatically open it if you've purchased any of the elements required to construct i.e. (iron casting purchased at the trade market used to make a gun) the gun will not be able to be sold

You have to increase 75 points to trade