Uphawu lweMveliso :
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 (FRP) ukuqiniswa okuphakathi;
3. Ifilim elisongelwe ngokuphindwe kabini egqunywe intsimbi yethayiphu yesikrweqe inokuphucula ngokufanelekileyo uxhathiso olusecaleni lwentambo yokukhanya.