Onye na-eweta ụlọ ọrụ dị elu Carbon Sulfur Graphite ntụ ntụ

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Ngwa: tumadi eji na metallurgical ụlọ ọrụ dị ka recarburizer, reducer, nkedo modifier, fireproof ihe, Refractory, Foundry, nkedo ígwè nchoputa.


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