Ena ke nyeoe ea boemo bo holimo ea bohloeki ba lipere ho u fa sebaka sa polokelo ho fihlela litlhoko tsohle tsa hau tsa boits'oaro ba lipere.Sebelisa lebokose lena la aluminium le nang le mehele ho boloka le ho tsamaisa borashe, likama le lisebelisoa tse ling hohle moo u eang.
Re feme e nang le boiphihlelo ba lilemo tse 15, e ikhethang ka tlhahiso ea lihlahisoa tse ikhethileng joalo ka mekotla ea litlolo, linyeoe tsa litlolo, linyeoe tsa aluminium, linyeoe tsa sefofane, joalo-joalo.