(1) Option Loj: Feem ntau cov loj txoj kab uas hla log, thawb ntau kev rau siab, zoo dua muaj peev xwm tshaj obstacles.

(2) Saib load: casters tib txoj kab uas hla, feem ntau manufacturers yuav tsim ob peb series rau txawv load-tau cov kabmob, xws li lub teeb, medium, hnyav, thiab lwm yam, nws yog cia kom cov log muaj ib tug txawv dav thiab bracket muaj ntau thickness los yog pauv cov ntaub ntawv .

(3) Log khoom: qhov no yog ib qho tseem ceeb heev, feem ntau PU, TPR, PP, roj hmab, nylon, thiab lwm yam, raws li siv tau kub, nto hardness, nto ib puag ncig