Umgca ongaphezulu ubhekiselele kumgca ongaphezulu ovulekileyo omiswe phantsi, ongumgca wamandla ombane omiswe kwi-pole tower ene-insulators kunye nezixhobo zombane.Yenziwe ngocingo kunye nocingo lomhlaba (umcingo ongaphezulu komhlaba), inqaba, isigqubuthelo, ihardware, kunye nezinye izinto zesiseko senqaba...
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