While Hao Ren was sitting inside his mansion comprehending everything inside his mind and learning the body refining arts and the other things, he found a method to refine a grandmaster hammer for himself. However, his hammer didn't need the small needle inside his hammer.
The technique that Tang San created in his lifetime was half a research, and he had imparted it to Hao Ren without holding back. The young man used his own comprehensions and came up with a simple plan that would change the face of element fusion in the refining world.
The needle penetrating through the surface of the metal would decrease the integrity of the artifact. So, the next best way was to refine the artifact with a hollow as thin as a human hair. The structure won't be compromised and the elemental ink material could be placed inside. Well, that was what Tang Sen thought.
