Polyurethane ru tsev vaj huam sib luag yog tsim los ntawm 2 txheej ntawm huab cua-pov thawj xim hlau los xij thiab jetted cov ntaub ntawv nyuaj ntawm polyurethane ntawm 2 txheej uas muaj cov khoom siv hluav taws xob.Nws muab faib ua ob hom: Peb nthwv dej ntawm polyurethane puas vaj huam sib luag ru tsev, plaub nthwv dej ntawm polyurethane composite ru tsev vaj huam sib luag.Cov cim ntawm PU ru tsev vaj huam sib luag yog cov rwb thaiv tsev kub, tsis muaj dej, tsis muaj suab nrov, thiab yooj yim rau nruab.Qhov ua haujlwm zoo heev yog vim li cas ntau tus neeg xaiv nws ua lub ru tsev board.