Changfei Fiber Optic Cable Co., Ltd. (hereinafter referred to as "Changfei Company", code: 601869.SH, 06869.HK) is a large-scale provider of fiber preform rods, optical fibers, optical cables, and comprehensive solutions.

Changfei Fiber Optic Cable Co., Ltd. has purchased our HS-TH-3500 carbon black content tester, which has been installed and debugged. Our company has established cooperative relationships with Shanghai Changfei, Shenyang Changfei, and Tianjin Changfei successively. Thank you for your long-term support to our company.