Titha kunena motsimikiza kuti mpweya wotayidwa wa tiyi wa alumnuum thumba silimakhudza, chifukwa kukhudzidwa kwa tiyi kumaphatikizapo mbali zotsatirazi. 1.Kusintha kwa kutentha kwa tiyi: kutentha kumakhala ndi vuto lalikulu
1. Kodi ndingasinthe thumba la tiyi ulusi wa thumba la tiyi limatha kukhala lonyowa. Anzanu omwe amakonda kugwiritsa ntchito matumba a tiyi. Matumba a Tiyi, omwe amatchedwanso matumba a tiyi, monga dzinalo likutanthauza, ndi masamba a tiyi atakulungidwa mu pepala kapena nsalu, yomwe imatha kusungidwa kwa nthawi yayitali. Matumba a tiyi
Kusankha zosefera kumanja kumatha kusintha mtunduwo komanso kukoma kwa khofi. Nazi mfundo zazikuluzikulu zosankha fayilo ya khofi: 1. Pali mitundu iwiri yofananira, yomwe ili ndi pepala losefera ndi zosefera zosakhalitsa