1. Nhamba huru yemacores, yose yakaoma mvura inovharira chimiro, pasina mafuta anozadza, akachena uye anokurumidza panguva yekuvaka, uye pasina kukanganisa kune zvakatipoteredza.
2. High modulus girazi fiber yakasimbisa tsvimbo yepurasitiki (FRP) kusimbiswa kwepakati.
3. Yakareba yakaputirwa kaviri-mativi firimu yakavharwa corrugated simbi tepi zvombo zvinogona kuvandudza lateral pressure resistance ye optical cable.