Dab tsi yog silicon hlau hmoov?
Lwm lub tsheb yog ntsia thiab cov hlau silicon hmoov raug xa mus.
Silicon hlau hmoov xa!!!!!!
Cored Hlau 2.5-5%
Cored Hlau 6 240g/m
Cov qauv ntawm txhua yam khoom tso los ntawm Lub Tuam Txhab
Mus ua haujlwm!
Ua haujlwm hnyav! Mus rau nws! Los ej!
Dab tsi yog qhov kev siv ntawm silicon hlau hmoov?