1. Inani elikhulu lee-cores, zonke izakhiwo zokuthintela amanzi omileyo, akukho mafutha okugcoba, ahlambulukileyo kwaye akhawuleza ngexesha lokwakha, kwaye akukho mpembelelo kwindawo engqongileyo.
2. I-modulus yeglasi ephezulu ifayibha eqiniswe intonga yeplastiki (i-FRP) i-central reinforcement.
3. Ifilimu ebotshwe ngobude obuphindwe kabini egqunywe intsimbi yethaphu yesikrweqe setape inokuphucula ngokufanelekileyo uxhathiso olusecaleni lwentambo ye-optical cable.