Black oxide ma ọ bụ blackening bụ mkpuchi mgbanwe maka ihe ferrous, igwe anaghị agba nchara, ọla kọpa na ọla kọpa dabere alloys, zinc, ọla ntụ ntụ, na ihe na-ere ọlaọcha.[1]A na-eji ya gbakwunye nguzogide corrosion dị nro, maka ọdịdị, yana iwelata ntụgharị ọkụ.[2]Iji nweta oke corrosion res...
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