Low voteji kudzikonda kopitilira muyeso wapamwamba kwambiri magawo atatu okhazikika maginito synchronous mota ya flotation lamba wonyamula mumakampani opanga zitsulo.

Chogulitsachi ndi chida chothandizira cholumikizira lamba woyandama pamalo opangira migodi ya lead-zinki ndipo chaperekedwa kwa ogwiritsa ntchito.Kuyankha pa tsamba ndikwabwino.