Faʻavasega uʻamea-faʻavae o le Instrulorization system faʻataʻitaʻiga i le potu

Faʻavasega uʻamea-faʻavae o le Instrulorization system faʻataʻitaʻiga i le potu

H2S aveese mai le kesi, pei o le biogas, kesi masani, o le kesi kesi ma etc.