[Optical fiber concept rebounded in shock, Hangzhou Electric Co., Ltd. shares approached the daily limit] On September 2, the optical fiber concept rebounded in shock during the session, and Hangzhou Electric Co., Ltd. stock approached the daily limit. Changyingtong, Kingsignal, YOFC Fiber, Optoelectronics Co., Ltd., Tongding Internet, etc. followed suit. On the news, according to CCTV Finance, a company official said that since the beginning of this year, all production lines have been operating at full capacity, and the sales of some models have soared 3 to 5 times year-on-year. The newly built smart manufacturing base has reached its maximum capacity, and the production capacity will be doubled. Some orders are currently scheduled for a year later.