Peb cov khoom lag luam suav nrog T490, T520, T600, T780, qhov no. Thawj chav tsev folding tuaj yeem ua rau 6 qhov sib npaug folding, thiab chav tsev folding thib ob tuaj yeem ua rau ntau qhov sib npaug. Nruab nrog tsis siv neeg dual tswj system rau ntawv pawg qhov siab. Yog Ua tiav ntau hom kev sib npaug sib npaug. 6H6W-F kev sib txhuam feeder muaj kev ua haujlwm siab heev thiab tshuab zoo, thiab tseem tuaj yeem paub txog cov qauv sib txawv ntawm ib qho folding, ob chav folding lossis triple folding, xws li accordion folding, tsab ntawv folding, ob npaug sib npaug folding, qhov rooj folding, thiab lwm yam.