Zinthu zazikulu zomwe zimakhudza mtundu wa chitoliro chopanda chitsulo chodula mbali zonse za zida zamakina, zida, mindandanda yamasewera, chopanda kanthu, njira zopangira ndi kukonza chilengedwe.Kuwongolera mtundu wa kudula chitoliro chosasunthika, zinthuzi ziyenera kuchitidwa pamiyeso yoyenera, monga zofiira ...
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