1. Nhamba huru yemacores, yose yakaoma mvura inovharira chimiro, hapana kuzadza mafuta, yakachena uye inokurumidza panguva yekuvaka, uye haina kukanganisa kune yakapoteredza nharaunda.
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.