1. Loose tube protected one-time coated fiber.
2. Steel messenger wire, "8'figure cut section.
3. Steel messenger wire support, easy installation, low installation cost.
4. Filling compound make all cut-section water-proof.
5. Controllable surplus length.
6. The Additional attenuation of the fiber in prodicts are no more than 0.02dB/km.
7. The value of chromatic dispersion kept unchanged.
8. Operation temperature range reach to -40~-70. º C