Lisi vaituloto e tete'e ai
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Ie La'au Va'a Tete'e
PVC anti-seepage ie e lautele faaaogaina mo auala, faatanoa, vaitaele kemikolo, cesspits, tane suauu, vaituloto masima, fale, landfills, otaota otaota fale, ma tane fermentation biogas.
