E faʻafefea ona foia le faʻafitauli o le leakage valve butterfly manual? Na fai atu Likv ia te oe.
E faʻafefea ona foia le faʻafitauli o le leakage valve butterfly manual? Na fai atu Likv ia te oe. O le valve butterfly manual o se ituaiga o valve, ona o lona fausaga faigofie, faʻaogaina faigofie, faʻapipiʻi faigofie, tau maualalo ma isi mea lelei, e faʻaaogaina lautele i paipa fale gaosi oloa. Fa'afefea...
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