Iron waya factory na mmepụta nke ígwè waya, tumadi iji carbon ígwè ma ọ bụ igwe anaghị agba nchara, na-emekarị mgbe efere shei, pickling, ịsacha, saponification, ihicha, ịbịaru, annealing, jụrụ, pickling, ịsacha, galvanized ahịrị, nkwakọ na ndị ọzọ usoro, iji mepụta iron ingot na-eme m ...
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