KISHO iav Txheej - yuav ua li cas thiaj ua tau rau siv lead ua
Thawj kauj ruam, mus nrhiav ib lub thauv rau hauv lub thawv (tuaj yeem ua rau lub caij nplooj ntoos hlav kis tau);
Qhov thib ob kauj ruam, peb KISHO iav Txheej kua tso rau hauv nws (kom ncuav ob feem peb ntawm cov nyiaj);
Qhov thib peb kauj ruam, nws tseem nyob rau hauv chav sov 72 teev (tsis txhob kov nws, muaj peev xwm them tau muab tso rau hauv lub tub yees, zoo nkauj thiab ntau dua kev paub ntawm crystallization).
