Chapter 1657: Dad

d is difficult because titanium crystals, while very hard, are also very brittle. 。It must be burned at a high temperature, and the hammer force must be controlled just right. 。If it is too heavy, it...!" Arhueng suddenly shouted, and only now did he realize that he could speak. 。 Sima Jinchi roared angrily, "You are playing with people's lives!" 。You have no right to kill me, I am a colonel in the...