Jirgin kasa na jirgin kasa da motocin jigilar kayayyaki suna buƙatar kayan aikin injina masu girma don sassan simintin gyare-gyare da ɓangarorin ƙirƙira, yayin da haƙurin haƙuri shima muhimmin abu ne yayin aikin. Partsungiyoyin baƙin ƙarfe, sassan baƙin ƙarfe da ɓangarorin ƙirƙira galibi ana amfani da su don ɓangarorin masu zuwa a cikin jiragen ƙasa da motocin jigilar kaya:
- Shock Absorber
- Tsaran Jikin Gear, Wedarfe da Mazugi.
- elsafafun
- Tsarin birki
- Abun kulawa
- Jagora
Anan a cikin waɗannan akwai abubuwan da aka saba da su ta hanyar simintin gyare-gyare da / ko gyare-gyare daga masana'antarmu: