Joalokaha kaofela rea tseba, li-flayes li sebelisetsoa ho hokahanya lipeipi tse peli, lipompo le li-valves. Ena ke li-corrosant tse loantšanang, ho sebelisoa thepa ea boleng bo holimo haholo ho etsa sehlahisoa sena. SA 182 Flangs Flanging, e tsejoang hape e le lipopae tsa mabele, li fumaneha ka limaraka tse fapaneng, boholo le likhatello tse phahameng. Boholo bo fapaneng le litekanyetso tsa sehlahisoa sena le tsona lia fumaneha.