the high cost. First, make a batch that is usable, and then consider how to reduce the cost.""Did you hear that" Li Chen said to Guan Zhiwei.Guan Zhiwei couldn't understand why Li Chen was so interes...Chapter 338: The Situation Like a Rushing Thunderll Guan Zhiwei."The Three Treasures respectfully replied.A moment later, Guan Zhiwei came over from his duty post.Another round of empty platitudes, Li Chen drew a note with an address on it, copied t...