u'amea uamea fa'amaualuga tete'e corrosion ma mata'ina malosi. O ona uiga fa'apitoa ua avea ai ma filifiliga lelei mo le gaosiga o mea'ai mafolafola tumau & tipi & mea siliva. I lenei suʻesuʻega, matou te suʻesuʻeina faʻamatalaga o mea uʻamea uʻamea, aemaise lava le 200, 300, ma le 400 faʻasologa, faʻamalamalamaina mea lilo e faʻavasega ai eseesega taʻitasi.