Gehflif

From Haelrahv Wiki

Gehflif is actually not a metal itself but a method of adding fiberous inclusions to the metal, allowing ore to be stretched farther without sacrificing much in strength. This method is commonly used on Kokrugun but works on a number of metals. The process leaves a visible pattern of lines on the metal and changes the color of the metal to brown. It will oxidize the same as the base metal.