Cov thev naus laus zis nyob qhov twg hloov asphalt khoom siv?
Cov ntaub ntawv ua txhaum, raws li cov chaw tsim khoom siv tau hloov kho cov khoom siv asphalt, tau ua haujlwm ntev rau kev tsim khoom, kev tshawb nrhiav, kev tsim khoom thiab cov khoom siv zoo siab asphalt. Nws yog kev ua lag luam dav. Tau ntau xyoo, peb tau tsim ntau cov khoom siv asphalt uas zoo siab ua tau raws li cov neeg xav tau ntawm cov neeg siv tshiab thiab qub. Niaj hnub no, cia peb cov kws tshaj lij piav qhia nws rau koj.
Kawm Dua
2025-01-16
