Usoro fatịlaịza bụ nke mejupụtara fatịlaịza inorganic, fatịlaịza organic, ịnweta na ihe ndị ọzọ.The inorganic fatịlaịza na compound fatịlaịza, dị ka urea bụ corrosive na mgbanaka ebu, mgbanaka anwụ oghere na n'ime cone oghere na-eyi oké site ịnweta, ya mere ihe nke mgbanaka ebu kwesịrị họrọ igwe anaghị agba nchara X46Cr13.Ngwakọta fatịlaịza mgbanaka anwụ anwụ na-abụkarị nnukwu, dị n'etiti 3.0-6.0mm, n'ihi nnukwu ọnụ ọgụgụ esemokwu, oghere ahụ siri ike ịhapụ.