Nsogbu nke ịgbado ọkụ nke etiti-ugboro ntụpọ igwe na-tumadi lekwasịrị n'akụkụ isii: 1, ịgbado ọkụ ike; 2, ịgbado ọkụ isi ike; 3, nkwụsi ike nke akụkụ ịgbado ọkụ; 4, nhazi nhazi; 5, nkwụsi ike akụkụ; 6. Nguzogide corrosion. Usoro nta a ka ị webata...
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