(1) Lub thav duab tsim cov qauv tseem ceeb thiab cov duab yooj yim ntawm lub rooj zaum.Cov ntaub ntawv thav duab yog cov ntoo, hlau, cov txiv neej ua vaj huam sib luag, nruab nrab ntom ntom fiberboard, thiab lwm yam. Tam sim no, cov khoom tseem ceeb yog nruab nrab ntom fiberboard.Lub thav duab feem ntau yuav tsum tau ua kom tau raws li cov qauv kev xav tau thiab lub zog xav tau.

(2) Cov khoom filling ua lub luag haujlwm txiav txim siab hauv kev nplij siab ntawm lub rooj zaum.Cov tsoos fillers yog xim av silk thiab springs.Niaj hnub no, foamed plastics, sponges, cov khoom siv hluavtaws nrog ntau lub zog tau siv ntau.Cov muab tub lim yuav tsum muaj zoo elasticity, qaug zog tsis kam thiab lub neej ntev.Kev thauj khoom thiab kev nplij siab ntawm qhov sib txawv ntawm lub rooj zaum sib txawv.Kev ua tau zoo thiab tus nqi ntawm cov fillers sib txawv heev.

(3) Kev ntxhib los mos thiab xim ntawm cov ntaub txiav txim siab saj ntawm lub rooj zaum.Tam sim no, ntau yam ntawm fabrics yog tiag tiag dazzling.Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, ntau yam ntawm cov ntaub yuav dhau los ua ntau thiab ntau dua.

Cov qauv ntawm lub rooj zaum ib txwm (hauv qab-up): ncej-ntoo sawb-caij nplooj ntoos hlav-hauv qab gauze-xim av cushion-sponge-lub hnab sab hauv-pob.

Cov qauv ntawm cov niaj hnub sofas (los ntawm hauv qab mus rau sab saum toj): ncej-elastic band-hauv qab gauze-sponge-inner bag-coat.Nws tuaj yeem pom tau tias cov txheej txheem tsim khoom ntawm cov rooj zaum niaj hnub no tshem tawm cov txheej txheem siv sijhawm thiab siv zog ua haujlwm ntawm kev kho cov springs thiab nteg cushions piv nrog cov tsoos sofas.