Cov teeb meem dab tsi tshiab hloov kho tshiab emulsified txhawb cov khoom siv?
Lub peev xwm txhim kho ntawm lub emulsified asphalt cov khoom ua los ntawm lub rooj ua txhaum yog 350-370, 253-260, 169-178, 90-110 (kw). Kev tsim cov qib high-qib kev pua rau kev hloov kho cov khoom siv hluav taws xob siv tau muaj cov khoom siv hauv qab no hauv cov khoom siv asphalt
Kawm Dua
2025-01-13