Siv peb lub 2.5 Nti Bolt Hole Casters los nruab rau koj cov tubular racks hnyav thiab cov tsheb thauj khoom siv hluav taws xob, uas tau tsim los rau kev sib txuas ntawm lub bolt. Lub hollow kingpin no siv tau rau txhua qhov ntev, muab kev daws teeb meem yooj yim rau kev teeb tsa, tsis muaj phaj rau cov raj tuab thiab cov ceg tshuab. Tsis pom qhov koj xav tau? Tiv tauj peb kom tau kev taw qhia.
