A cikin masana'antu masu nauyi, ɓangarorin injina suna taka muhimmiyar rawa a cikin aiki da amincin abubuwa daban-daban. Ana amfani da waɗannan ɓangarorin madaidaicin injiniyoyi a cikin aikace-aikace masu yawa waɗanda suka haɗa da injinan injiniya, injinan gini, injina na gabaɗaya, kayan aiki na musamman da ginin jirgi...
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