Onani Chifaniziro Chachikulu Malinga ndi lipoti la Markets And Markets, msika wa valve wa mafakitale ukuyembekezeka kukula kufika pa 85.19 miliyoni pofika 2023. Gawo lopanga ma valve a mpira liyenera kukhala ndi kukula kwakukulu chifukwa cha kukonzanso ndi kuwonjezereka kwa ndondomeko kuchita bwino.H...
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