Rotary valve e faʻaaogaina lautele i luga o meafaigaluega e pei o le pefu, fua faʻaeletoroni ma masini faʻalauteleina o loʻo i ai i le faagasologa o le gaosiga o meaʻai e pei o sauniuniga, togafitiga, faʻafefe, faʻafefiloi, faʻafefe, faʻalauteleina, faʻapipiʻiina ma le teuina o mea mata.Matou te tuʻuina atu rota ...
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