Ngwaahịa nwere ọtụtụ ebumnuche, ya na ezigbo nguzogide corrosion na nguzogide ọxịdashọn, na-eje ozi nke ọma dị ka ike, nchekwa na ihe nchekwa okpomọkụ n'ụdị akpa ntupu, oghere nkume, mgbidi dịpụrụ adịpụ, mkpuchi mmiri ọkụ ma ọ bụ ngere anụ ọkụkọ na-ewu, mmanụ ala, kemịkalụ, ozuzu, ubi na nri nhazi ụlọ ọrụ.