Masu ɗaurar da aka haɗa suna da matsayi mai muhimmanci a fakin injiniyar jari, musamman a kula da kuma rarraba ƙarfi na harki. An shirya waɗannan kayayyaki don a haɗa aiki na irin gyaransa dabam dabam dabam, musamman tafiya da kuma tafiya, A cikin wani guda guda. Ta wajen haɗa waɗannan ayyukan, masu saurare da aka haɗa suna ba da magani mai kyau wajen wurare