Cov koob YLB yog cov khoom siv sib tov asphalt txawb uas Tietuo Machinery tsim tawm raws li kev thov ntawm kev ua lag luam. Txhua qhov khoom siv ua haujlwm ntawm lub tshuab tiav yog ib lub module sib cais nrog nws tus kheej lub chassis walking system. Tom qab folding thiab retracting, nws tuaj yeem rub los ntawm lub tsheb laij teb kom yooj yim tsiv chaw. Cov khoom siv siv cov khoom siv hluav taws xob sai thiab tsim qauv tsis muaj lub hauv paus rau kev teeb tsa yooj yim thiab pib tsim khoom sai.