ignificance is equally evident. 。First, his soul reached a sufficient height, surpassing his original reach. Second, his mental power was greatly tempered at the same time. 。During the process of mer...etal refining, forging, design, fabrication, and maintenance 。The difficulty of Dou Kai is at least ten times higher than that of mecha. 。If you have money, you can find the best people to design and...