A fannin karafa, tarihin samar da silicon carbide crucible da aka yi amfani da shi don narke karafa da ba na ƙarfe ba za a iya gano shi tun a shekarun 1930. Tsarinsa mai rikitarwa ya haɗa da murkushe ɗanyen abu, batching, jujjuya hannu ko yin nadi, bushewa, harbe-harbe, mai da tabbatar da danshi. Ingredient...
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