N'oge usoro mmepụta kwa ụbọchị, n'ihi ịka nká nke ọkụ na-ekpo ọkụ, nitrogen generator, amonia decomposition na ngwá ọrụ ndị ọzọ, ngwaahịa metallurgy ntụ ntụ mgbe ọkụ ọkụ na-enwe usoro nsogbu oxidation dị ka blackening, yellowing, decarburization, na sandblasting on t. ..
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