Tsis ntev los no, peb cov fibers asphalt binderchip spreaderyog nrov, uas yog ib yam khoom tshiab tsim nrog peb kev nplua nuj engineering. Peb cov chip spreaders yeej txiv qaub los ntawm peb cov neeg siv khoom Kauslim.

Lub yim hli ntuj 29, 2018, ib tug neeg Kauslim tuaj xyuas peb lub Hoobkas. Cov neeg Kauslim tau hais lus zoo heev ntawm covsynchronous sealing tshuabua los ntawm peb lub Hoobkas, tsis yog tsuas yog cov kev tswj xyuas ntse, tab sis kuj tseem tsim cov cuab yeej siv siab heev. Peb cov engineers tau piav qhia peb cov tswv yim kev tshaj lij rau cov neeg siv khoom kom ntxaws. Kauslim cov neeg siv khoom txaus siab koom tes nrog peb.