Ekhiqizeni indawo engamelana nokugqwala esifundeni sezindawo lapho kuthintwa khona igesi elishisayo le-boiler yokushisa yensimbi yensimbi, izingxenye ezihambisanayo zesikhunta sokuphonsa ziphathwa ngokuwasha okumnyama okuqukethe i-alloying element, okungcono 40- 50% ferrosilicon, eguqula ...
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