C57 Large wave of sand
To refine this "Spirit Flexible Iron", indeed there was no need to use a hammer, but the Weapon Refiner's hands acted as the hammer.
While he was kneading them, inside Tang Huan's Dantian, the Spiritual Wheel and the "Nine Yang Divine Furnace" were also operating non-stop. The scorching hot Genuine Qi penetrated into the iron ore bit by bit