TDGD fiber optic cables are supplied by Tongding Interconnection Information Co., Ltd., a subsidiary of Tongding Group based in Wujiang, China.

Tongding Interconnection Information Co., Ltd. specializes in the research, development, manufacturing, and marketing of optical fiber and fiber optic cables, including communication, railway signal, and special-purpose cables . The company operates a large-scale facility in Wujiang, Jiangsu province, with advanced production lines capable of producing 7.5 million fiber-kilometers annually . The TDGD brand has received recognition for quality, including the China Top Brand certificate and Quality Free-Inspection certification . The company's fiber optic cable production is supported by state-of-the-art equipment from international suppliers, including fiber ribbon forming machines from Finland, secondary coating lines from Austria and Finland, and advanced cabling and jacketing lines . Tongding Interconnection Information Co., Ltd. also provides engineering services and global distribution for its optical fiber products, making it a reliable supplier for both domestic and international projects . For more information or to contact the supplier directly, you can visit their official website: Tongding Interconnection Information Co., Ltd., .