Kev piav qhia
-Tsis siv thaj chaw ntxiv, ua kom yooj yim rau cov duab ntxiv, thiab haum rau qhov chaw me me zoo dua
-Multi-layer cia tsim, ua kom tag nrho ntawm qhov chaw ntsug thiab ua kom muaj peev xwm cia
-Qhib nrog daim phiaj tsim, nqa tau yooj yim, tuaj yeem khaws cia, thiab tuaj yeem muab tso rau ntawm cov khoom dai
-Txoj kev txav tau yooj yim, dawb do adjustable
-Caw txee qhov rooj cia, plua plav pov thawj thiab tsw ntxhiab
-Rounded tes, ua kom yooj yim rub
-Hardware tsis yooj yim rau xeb
Hauv tsev feem ntau, cov khau # txee yog ib txwm muab tso rau ntawm qhov nkag ntawm chav nyob, saib tuab thiab tob.Feem ntau, nws yuav tsum xub xub ua lub luag haujlwm ntawm kev muab khau thiab khoom plig rau tib lub sijhawm.Nws lub ntsej muag yog tag nrho ntawm cov yuam sij, cov ntawv xa nyiaj, cov ntawv tshaj tawm, daim ntawv teev nyiaj hauv tuam txhab, thiab lwm yam. Thiab hauv nws lub cev, cov khau siab heeled ntxim hlub thiab ntxim hlub plaub hau khau khiab tau sib sau ua ke, khau ncaws pob thiab khau tawv tawv yog nyob ze.