Cov Nta Tshiab
Peb lub tuam txhab yog tus thawj coj hauv kev siv polyvinyl alcohol hauv ntau qhov chaw. Piv txwv, peb cov khoom yog siv hauv cov thev naus laus zis tshiab suav nrog cov khoom ntim biodegradability thiab ntau txoj kev kho kom zoo nkauj ntawm cov ntaub. Cov kev tsim kho tshiab lossis cov khoom tshiab hauv PVA tab tom nce los ntawm peb txoj kev nrhiav mus ntxiv rau ntau thaj chaw ntawm kev siv lossis kev txhim kho ntawm cov thaj chaw uas twb muaj lawm kom pab peb cov neeg siv khoom nyob hauv qab ntawm lawv cov khw.