Official Answer
Answer
Black Oxide (MIL-DTL-13924) shafi ne na juyawa wanda ke ƙara kusan babu kauri ($ <1$ micron), yana mai da shi manufa don zoben karkace tare da madaidaicin haƙuri a cikin nisa. Koyaya, yana ba da juriya mai ƙarancin gishiri (yawanci $ < 96 $ awanni tare da mai). Zinc Phosphate (MIL-DTL-16232 Nau'in Z) yana ba da mafi nauyi, tsarin lu'ulu'u wanda ke riƙe da ƙarin lalata-hana mai, yana ba da ingantaccen kariya ga aikace-aikacen ƙarƙashin hular mota. Dole ne injiniyan injiniya ya zaɓi ya dogara da juriya na 'gini': idan ƙaddamar da zobe-zuwa-tsagi shine $< 0.002$ inci, Black Oxide ya fi aminci don hana ɗauri, yayin da ga yanayin masana'antu masu lalata, Phosphate shine ma'auni.
