Ntawv Draw Kev Siv Tshuab, tsim rau me me diam (6-12 hli) ntawv straw. Nws xaus li 6 units: kev daws teeb meem, kev qias, ncab, ntawv sib tw, txiav, thiab khaws. Kev sib txawv ntawm cov ntawv ntoo sib txawv ua tau tiav los ntawm kev hloov qhov loj ntawm cov tub ntxhais tsis muaj qab hau.
Lub thav duab ntawm lub cev muaj peev xwm haum nrog 9 daim ntawv teev cov ntawv tuav; los ntawm sab saum toj mus rau hauv qab, muaj cov ntawv hauv qab, cov ntawv nrab thiab daim ntawv deg. Thaum lawv mus los ntawm kua nplaum, tsuas nruab nrab ntawv ob sab nrog kua nplaum, thiab ib sab ntawm daim ntawv nplaum nrog kua nplaum. Nyob rau hauv lub ncab, silicone roj poob rau ntawm daim ntawv hauv qab.
Qhov tseem ceeb tshaj plaws yog daim tw daim ntawv rau hauv ib daim ntawv lo. Txawv teb thiab xim hlau tsis ua haujlwm ua haujlwm txig rau ntawv. Tom qab ntawd cov ntawv straw raug txiav los ntawm 5 lub pob riam kom zoo thiab ceev nrooj. Cov khoom ntawm cov ntawv straws yog cia li tau sau tseg.