Inkcazelo emfutshane:

1, imbonakalo yabucala, uyilo olulodwa lweminwe, ukhululekile ngakumbi kwaye ufanelekile.
2, ukhuseleko lwePVC, luzinzile kwaye akukho tyhefu, imvakalelo ethambileyo
3, ezinzile 2.1 Ukutshaja okukhawulezayo, ukhuseleko oluzinzileyo kunye nokusebenza okuphezulu, inkxaso yeselula okanye ithebhulethi ngokukhawuleza.
I-4, i-100% yocingo olusulungekileyo lobhedu, ukuhanjiswa okukhulu kokusebenza
5, amandla kunye nojongano olude lwe-SR, akukho kwaphuka