Cov rooj zaum rov qab ib txwm yog tsim los ntawm cov ntaub ntawv yooj yim. Cov piv txwv muaj xws li plywood, uas yog peb - los yog ntau- cov ntaub ntawv txheej ua los ntawm kev txiav cov cav ntoo rau hauv veneers lossis txiav ntoo rau hauv cov ntawv nyias, tom qab ntawd gluing lawv ua ke nrog cov nplaum. Nws feem ntau siv cov khib nyiab ntawm cov veneer txheej, nrog cov lus qhia fiber ntau ntawm cov veneers uas nyob ib sab glued perpendicular rau ib leeg. Lwm qhov piv txwv yog fiberboard, cov khoom siv ntoo ua los ntawm cov ntoo fibers lossis lwm cov nroj tsuag fibers sib txuas ua ke nrog urea -formaldehyde resin lossis lwm cov nplaum tsim nyog. Cov ntaub ntawv no kuj pheej yig, muaj dav, thiab ua tau raws li cov kev cai siv yooj yim.
Ntau -cov ntaub ntawv rov qab ua haujlwm, ntawm qhov tod tes, siv cov ntaub ntawv tshwj xeeb lossis kev hloov kho cov ntaub ntawv zoo tib yam. Piv txwv li, qee qhov ntau- cov khoom siv rov qab siv tau siv cov ntaub ntawv sib xyaw tshiab uas sib xyaw ua ke zoo ntawm ntau yam ntaub ntawv. Cov ntaub ntawv no yuav suav nrog cov iav fibers, carbon fibers, lossis lwm yam khoom siv ntxiv rau hauv cov yas matrix los txhim kho kev ua haujlwm. Lwm tus tuaj yeem muaj cov txheej txheem tshwj xeeb siv rau saum npoo ntawm cov laug cam, muab lub nraub qaum rov qab ua haujlwm ntxiv.