Official Answer
Answer
Black oxide (MIL-DTL-13924) shafi ne na juyawa wanda ke ba da juriya kaɗan na lalata (yawanci awanni 2-4 na feshin gishiri) kuma ana amfani da shi da farko don ƙayatarwa kuma don rage haskaka haske. Ba ya canza girman zoben. Zinc Phosphate (MIL-DTL-16232) shafi ne mai nauyi wanda ke ba da kariya mafi kyawun lalata (har zuwa sa'o'i 72 na gishiri da mai) kuma yana aiki azaman kyakkyawan tushe don mai. A cikin aikace-aikacen mota, Zinc Phosphate an fi so don zoben da aka fallasa ga abubuwan, amma yana ƙara kauri mai ƙima (3-10 microns). Babu rufin da ya dace da yanayin lalata mai tsayi inda za a buƙaci bakin karfe ko na musamman kamar Magni ko Geomet.
