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HMA-D Nruas Sib xyaw Asphalt Cog
Smap batch tov Asphalt cog, nws yog kev hloov kho ceev thiab hloov chaw, kev sib koom ua ke siab. Tsis tas yuav tsum muaj kev sib dhos ua ke thib ob ntawm cov chaw tsim khoom .nit yog tsim nyog rau kev sib raug zoo, txo cov khoom siv hauv lub hauv paus, thiab cov khoom siv qis.