[Sales increased 3 to 5 times and some optical fiber companies have placed orders one year later] According to reports on August 31, two optical fiber preforms can pull out optical fibers that circle the entire earth. In the optical fiber production workshop, a single optical rod with an outer diameter of over 300 mm and a weight of more than 560 kilograms can pull out more than 20,000 kilometers of optical fiber. According to a person in charge of the company, 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 been topped out and the production capacity will be doubled. Some orders are currently scheduled for a year later. (CCTV Finance)