LVL, LVB thiab LVD (ntoo tshauv) yog txhua pab pawg ntau txheej, uas yog cov ntoo raws ntoo nias nrog ntau txheej veneer thiab sib khi nrog kua nplaum.
LVL, laminated veneer lumber, yog cov txiag ua raws cov kev taw qhia ntawm fiber ntau veneer unidirectional thiab thaum uas tig mus. Nws ua kom zoo dua cov khoom siv zoo li nqaj thiab lwm yam kev tsim kho vaj tsev. Cov txheej txheem, LVL muaj lub zog zoo dua hauv daim ntawv thov ntsug vim tias feem ntau ntawm cov kev coj ntawm fiber ntau yog unidirectional.Nws cov dav siv rau iav ntim, hnyav ntim tshuab ntim, rooj tog, kev tsim kho, thiab lwm yam.
LVB, laminated veneer board, yog pawg thawj coj saib nrog kev coj ntawm fiber ntau veneer ob kab rov tav thiab ntsug. Txawv los ntawm LVL veneer kev npaj, LVB muaj cov txheej txheem veneer zoo ib yam li LVD tab sis kuj muaj cov kab kev hla kev ntau dua 30%, xws li 3 txheej kab rov tav, 2 txheej ntsug thiab 3 txheej rov qab ua dua. LVB muaj zog dua hauv daim ntawv thov kab rov tav vim tias cov kab hluav taws xob transverse uas txhawb nqa lub zog tensile uas ua rau cov pawg tswj hwm ntau dua.LVB yog feem ntau siv rau hauv rooj tog ntau lawm.