1. Cov xim sib txawv: Raws li cov xim, cov iav tsis muaj hlau lead, uas yog cov translucent ntau dua li cov iav uas muaj cov hmoov lead-containing, qhov luv nqi yog qhov zoo heev, thiab cov iav uas muaj cov hmoov lead-containing tsis zoo li pob tshab txaus.ib yam li
2. Qhov zoo sib txawv: Qhov hnyav ntawm cov iav tsis muaj hlau lead yog me ntsis hnyav dua li cov hlau lead-containing iav khob.Cov iav loj tib yam, qhov teeb meem hnyav dav dav belongs rau cov hlau lead-muaj iav.
3. Lub suab sib txawv: khaws ib khob thiab ntaus nws nrog koj tus ntiv tes.Cov iav uas tsis muaj txhuas yuav ua rau lub suab nrov heev, thiab lub suab ntawm cov iav uas muaj cov hmoov txhuas yuav npub.Tshaj li lub suab ntawm cov hlau lead iav, lub suab ntawm cov iav tsis muaj hlau lead yog qhov zoo nkauj dua.
Post lub sij hawm: Apr-06-2023