1.good mechanical and temperature performance

2.high strength loose tube that is hydrolysis resistant

3.special tube filling compound ensure a critical protection of fiber

4.loose tubes filling compound

5.crush resistance and rlesxibility

6.the following measures are taken to ensure the cable water tight

7.single fiber reinforoad plastic as the central strength member

8.100% cable core filling

the fiber 250μm,are positioned in a loose tube made of a high modulus plasic.the tubes are filled with a water-resistant filling compound.the tube is wrapped with a layer of PSP long itudinally.between the PSP and the loose tube water-blocking material is applies to keep the cable compact and watertight.two parallel steel wires are placed at the two sides of the steel tape.the cable is completed with a polyethylene(PE) sheath.