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Kugwiritsa Ntchito Graphite Mold
M'zaka zaposachedwapa, chifukwa cha kukula mofulumira kwa mafakitale opanga ma die ndi nkhungu, zipangizo za graphite, njira zatsopano komanso mafakitale opanga ma die ndi nkhungu omwe akuchulukirachulukira zikukhudza msika wa ma die ndi nkhungu nthawi zonse. Graphite pang'onopang'ono yakhala chinthu chomwe chimakondedwa kwambiri popanga ma die ndi nkhungu chifukwa cha mphamvu zake zabwino zakuthupi ndi zamankhwala.