"For example, Taihao battle armor, the most famous heavy-duty crystal armor in the world of Xiuzhen, needs to use the precious Taihao stone when refining. Taihao stone is a kind of meteor outside the sky, and only one piece has fallen down in the whole Tianyuan world for 500 years. In other words, only one Taihao battle armor can be refined, and you want to refine it again