Chifukwa cha chitsulo chochepa cha kaboni chokhala ndi mpweya wochepa, manganese, silicon ilinso yaying'ono, choncho, nthawi zonse sichidzawotchedwa kuti ipange minofu yolimba kwambiri kapena yozimitsidwa. Low mpweya zitsulo kuwotcherera mfundo plasticity ndi mmene kulimba wabwino, weldin ...
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