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Sabis na Jiyya na Surface–Haɗu da juriyar lalata, juriya
Jiyya na saman hanya hanya ce ta wucin gadi ta samar da saman saman tare da kayan aikin injiniya daban-daban, na zahiri da sinadarai daga abin da ke kan saman ma'aunin, shine don tsaftacewa, sharewa, deburr, raguwa, da rage saman saman aikin.
Manufar jiyya a saman ita ce saduwa da juriya na lalata, juriya, kayan ado ko wasu buƙatun aiki na musamman na samfurin kuma don sassan injin.
