GYXTC8S Figure 8 Self-support Central Tube Optical Fiber Cable 1.Timely delivery 2.ISO9001, CE 3,Steel Tape 4.Self-support GYXTC8S Figure 8 Self-support Central Tube Optical Fiber Cable ... sheath to be figure 8 structure.Material:Fiber,Fiber Gel,Loose Tube,Steel Plastic Tape,Water-blocking Material,PE ... systems5.Local area network systems GYXTC8S Figure 8 Self-support Central Tube Optical Fiber Cable