A wannan zafin jiki, flanges na karfe mai duplex sama da digiri 300 na ma'aunin celcius har yanzu ana kiyaye su daga lalacewa saboda lalata. Hakanan iyawar bututun yana da kyau sosai a ƙananan yanayin zafi. Ana yin kera ne kawai tare da kayan aikin da aka sanya wa kayan bakin karfe. Dole ne a tsabtace da kyau kafin amfani. Ana yin haka ne don kare bakin karfe daga ƙetare gurɓataccen ƙarfe.
Bakin, Duplex, Alloy na musamman, Inconel, Monel, Hastelloy, Nitronic & Carbon Karfe - Zhengzhou Huitong Pipeline Equipment Co., Ltd.