Answer
Oxide y'umukara (MIL-DTL-13924) ni igifuniko cyo guhindura gitanga isura yijimye hamwe n’urwego ruto rwo kurwanya ruswa, cyane cyane igenewe gukoreshwa mu nzu cyangwa aho impeta izarohama mu mavuta. Zinc Fosifate (iremereye) itanga uburyo bwiza bwo kurinda ruswa kandi ikora nka substrate yo gusiga amavuta. Ku mpeta zizunguruka, igipfundikizo kigomba kuba gito cyane kugirango bitabangamira ubushobozi bwimpeta yo guhindagurika mugihe cyo kwishyiriraho. Impeta ya karubone (SAE 1070-1090) igomba gutunganywa neza kugirango wirinde kwinjiza hydrogène niba iyi myenda irimo intambwe yo gufata aside.