Ua los ntawm cov tshuaj tiv thaiv tsis muaj tshuaj tiv thaiv ib puag ncig PVC cov khoom siv, ruaj khov, lub teeb hnyav. Tus menyuam yaus ob-tus menyuam yaus ua yeeb yam qhia txog tus qauv cov qauv rau kev kawm. Nws zoo li yog thawj qhov kev xaiv rau feem ntau cov tsev kawm ntawv, chaw, thiab lwm yam dav hauv kev tshawb fawb, kev qhuab qhia, anatomy kev sim chav kawm thiab lwm yam. Cov Qauv Menyuam Cov Qauv Quav nkaus xwb, lwm yam ntxiv tau pom hauv daim duab tsis suav nrog. Cov lus qhia tshwj xeeb: Cov khoom: PVC loj: kwv yees. 37 × 16 cm /14.57006.30 ntiv xim: raws li qhia hauv daim duab kom muaj nuj nqis: 1 daim