Muchikozyano, tweelede kuba alusyomo luyumu kapati.Imatengera ukadaulo watsopano wotsogola, wokhala ndi, kupondaponda, corroding, kusindikiza, kupukuta, electroplating, coloring, dispensing, ma CD ndi zina zotuluka.Pambuyo kupukuta, dzimbiri, Zitsulo makadi woyengedwa...
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