The zofewa chisindikizo gulugufe valavu ndi oyenera kulamulira otaya ndi intercepting sing'anga pa kotunga madzi ndi ngalande ndi mpweya mapaipi chakudya, mankhwala, makampani mankhwala, mafuta, mphamvu yamagetsi, zitsulo, zomangamanga m'tawuni, nsalu, kupanga mapepala ndi zina zotero. ndi kutentha kwa ≤...
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