Thumba la aluminium
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Chikwama cha aluminium chisindikizo
Zogulitsa izi ndizoyenera kunyowa, chitsimikizo chopepuka komanso phukusi la vacuum la zida zazikulu zamakina, zida zamagetsi ndi mankhwala apakatikati. Kapangidwe kanayi kamakhazikitsidwa, komwe kumakhala ndi ntchito zabwino zamadzi ndi oxygen. Yopanda malire, mutha kusintha matumba okhudzana ndi mitundu yosiyanasiyana komanso masitaelo, ndipo amatha kupangidwa m'matumba athyathyathya, matumba amitundu itatu, matumba a ziwalo ndi mapangidwe ena.