Txhob muab ntaub so ntawm lub iav txheej, tsis txhob siv los so lwm cov tsheb, vim cov ntaub siv plated siv tau yog ib qho khoom siv crystalline, yuav nyob ntawm lub phuam, rov ua dua yuav tawm ntawm cov xim, ua rau xim Xim. KISHO siv lead ua khob txheej txheem yuav tsum tau tshwj xeeb txheej Microfiber phuam.
