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Ntchito Zosefera Mchenga
Kusefedwa kwa mchenga kumagwiritsidwa ntchito m'makampani opangira mafuta komanso kuyeretsa madzi.Mfundo yosefa mchenga ndi miyala ndiyo kugwiritsa ntchito zosefera kapena zida zosefera kuti alekanitse mchenga ndi miyala ku mafuta kapena madzi.Mkati mwa fyuluta nthawi zambiri imakhala compo...Werengani zambiri
