PU Nkawm khau yog dab tsi?

PU sawv cev rau polyurethane, uas yog ib hom khoom siv hluavtaws feem ntau siv los tsim ntau yam khoom siv, suav nrog khau. Polyurethane paub txog nws qhov ua tau ntev, yoog raws, thiab tiv thaiv kev puas tsuaj, ua rau nws muaj kev xaiv nrov rau kev tsim khau. Nkawm khau ua los ntawm polyurethane feem ntau muaj nuj nqis rau lawv lub teeb yuag thiab dej-tiv taus, nrog rau lawv lub peev xwm los ua cov tsos thiab kev ntxhib los mos ntawm tawv tawv. Lawv nquag siv los tsim ntau hom khau, nrog rau ob qho tib si xws li khau thiab khau.