C565 Superlarge Equipment for Refining

Melt, remove the impurities, add other supplementary materials, and strengthen the hardness and flexibility...

Su Fei followed the steps step by step. It felt like he had suddenly returned to the process of the first time he tried to refine the Qi-nourishing Pill. At that time, Su Fei had failed time and time again, and he had concluded that with his extraordinary perseverance and brain power