Olu Isticmaalaha korontada heerarka hydraulicka, Olu heerarka sare ee hydraulicka, Olu heerarka sawirida Olu iyo heerarka hydraulicka iyo Olu oo leh alaab aad u badan, qiimaha aad u fiican, qiimaha dheer, durdurka, iyo isticmaalka kala duduwan. Welcome to wir and iibso Olu macaamiisha cusub iyo gaboobay