Lefapheng la metallurgy, nalane ea tlhahiso ea Silicon carbide crucible e sebelisetsoang ho qhibilihisa litšepe tse senang ferrous e ka saloa morao ho tloha lilemong tsa bo-1930. Ts'ebetso ea eona e rarahaneng e kenyelletsa ho silakanya thepa e tala, ho kopanya, ho ohla ka letsoho kapa ho etsa roll, ho omisa, ho thunya, ho tlotsa oli le ho thibela mongobo. Eng...
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