Central tube Optical fiber cable GYXTW Application 1. Suitable for ducts and aerial. 2. Long distance communication system. 3. Local area network system. 4. Subsriber network system. Description 1. Single jelly compound filled loose tube containing up to 24 fibers 2. Waterproof tape between the steel tape and loose tube with jelly compound. 3. Duble-sided PE corrugated steel tape armored. 4. Parallel double steel wire as strength member. 5. Compact structure, light weight, steel tape armored excellent water-proof layer, good moisture.