Tuam Txhab Xov Xwm
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Taw qhia cov txheej txheem ntau lawm ntawm cov fwj iav
Cov txheej txheem iav ntim ntau lawm Hauv kev tsim cov khoom siv niaj hnub siv iav, tom qab cov khoom siv raw tau sib xyaw, lawv tau yaj, pub, tsim, thermally txau, annealed, thiab txias txau ua kom peb cov iav tsim tsim. Tsuas yog tom qab ntawv thiaj li tsim nyog cov khoom lag luam tuaj yeem ...Nyeem ntxiv -
Cov xim thiab hom khob fwj yog dab tsi?
Cov xim thiab hom khob fwj yog dab tsi? Nov yog tus kws tshaj lij ntawm tuam txhab iav fwj los qhia rau koj 1. Cov iav fwj yog cov iav ua los ntawm cov iav raw cov ntaub ntawv. Cov npe hu ua iav fwj, muaj ntau ntau xim ntawm cov iav fwj, uas tau muab faib ...Nyeem ntxiv