Da farko, aikin simintin yana da kyau. Yana da kyawawan launuka masu kyau, zai iya jefa sassa daban-daban, kamar silin din injin din tare da tsayayyen rami wanda yake jefa tare da baƙin ƙarfe. Da kuma adadin kifayenta karami ne, wanda zai iya rage yiwuwar jefa ramuka na shrinkage, fasa da sauran lahani.
Na biyun shine kyawawan abubuwan shin wuya. Zai iya ɗaukar rawar jiki sosai, kamar sujunan gado da aka yi da launin toka jefa baƙin ƙarfe, don haɓaka rawar jiki a cikin aikin aiki, don inganta daidaitawar aiki, don inganta daidaitawar aiki.
Na uku, karfi sanye juriya. Grey jefa baƙin ƙarfe yana dauke da hoto mai hoto, zane mai zane yana da tasirin lubrication, ana iya amfani da shi don yin zobe na Piston, birki na birki da sauran sassan da suke buƙatar sa juriya.
Na huɗu, yankan da sarrafawa yana da kyau. Saboda wanzuwar hoto yana sa launin toka a cikin baƙin ƙarfe a cikin sarrafawa, Ciki yana da sauƙi don warwarewa, don haka sanya kayan aikin karami ne, don haka ya zama mai sauƙi don aiwatarwa cikin ɗakunan sassa da yawa
