Rollers yog cais los ntawm cov log log

Lub dov cav yog tsim muaj lub teeb milling, nplhaib milling thiab yaj ko taw, thiab lwm yam zoo li. Feem ntau ntawm daim ntawv thov ntawm lub teeb rau cov menyuam yaus yog compaction ntawm pavement nto. Mechanical lossis hydraulic kev sib txuas lus tau muab cov lus cog tseg nruab nrab thiab kev cog lus thiab kev sib cog lus, uas yog tsim rau kev lag luam ntawm asphalt pavement.