Ancient cultivators, when forging a magical treasure, often required decades or even hundreds of years. Most of the time was spent refining various mineral materials, and the more precious the material, the more difficult it was to refine.
However, the material Lin Feng was refining now wasn't any precious ore; it was simply extracting refined iron from processed steel, which was hundreds of times easier than from iron ore.
"Phew… I'm exhausted. I didn't realize extracting refined iron from steel would be so energy-consuming!"
After persisting another hour, Lin Feng finally managed to refine half a ton of steel completely. Aside from some black iron dross, he ended up with a piece of silver-white refined iron that weighed no more than a pound in his hand.
"No way? To extract less than a pound of refined iron, I've already spent two hours and nearly all my primordial energy. This artifact refining really is tough labor!"
