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Graphite yowonjezereka imapangidwa ndi njira ziwiri
Graphite yowonjezereka imapangidwa ndi njira ziwiri: mankhwala ndi zamagetsi. Njira ziwirizi ndizosiyana kuwonjezera pa njira yothira okosijeni, kuchotsa asidi, kutsuka m'madzi, kutaya madzi m'thupi, kuumitsa ndi njira zina ndizofanana. Ubwino wa zinthu zomwe zimapangidwa ndi ambiri mwa opanga...Werengani zambiri