Chapter 221: Twin Sisters >

is opponent's match in strengthTang Wulin said in a low voice: "Don't be impulsive, this matter is not that simple. Don't forget where we are. This is the East Sea Academy, a soul master academy. The... extracted from a kind of mineral. 。It is inherently corrosion-resistant and can also increase the hardness of metal. 。Some mechs also choose this material as their external coating. 。The Tang Sect's...