The waya ntupu na-akpa akpa mgbe plating, plating na ụzọ ndị ọzọ, mgbe ọgwụgwọ nke waya ntupu ma ọ bụ waya ntupu nwere ezi corrosion eguzogide, oxidation eguzogide àgwà, ike ga-eji maka ewu, mmanụ ala, chemical ụlọ ọrụ, ozuzu, ubi nchebe, nri. n'usoro...
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