Kev Siv Lub Cev:
1. Qhov yooj yim yog los sib piv cov kev xav, fake titanium dioxide yog smoother, thiab tiag tiag titanium dioxide yog astringent.
2. Dej ntws nrog titanium dioxide ntawm koj txhais tes. Cov cuav uas tau yooj yim ntxuav tawm, tab sis nws tsis yooj yim ntxuav tawm.
3. Muab lub khob dej, pov lub titanium dioxide rau hauv nws, cov uas ntab uas ntab yog tsis muaj tseeb (tshwj tsis yog muaj kev hloov kho cov khoom siv tau ntxiv).
