Dvergr metal wall

is a buildable structure. It requires Copper to build and needs to be built within the range of a Black forge. It can be found naturally in the world as part of some Dvergr structures in the Mistlands. An indestructible variant can also be found inside Infested Mines in the Mistlands.
Despite its sparse appearance, it is entirely solid; projectiles such as Arrows cannot penetrate it.
ru:Металлическая стена двергов
cs:Kovová Dvergská zeď