Cov khoom siv ib leeg

Feem ntau yog tawv tawv, tawv mos, tawv tawv, ntaub, roj hmab, yas, roj hmab -yas thiab roj hmab- cov ntaub ntawv ua npuas ncauj. tawv tawv yog ua tiav los ntawm nyuj thiab npua tawv, thiab feem ntau yog siv rau khau tawv, thiab ib qho me me yog siv los ua tawv- cov khau khau. Tsis tas li ntawd, cov khau tawv tawv kuj tau siv dav siv tawv tawv. Cov ntaub yog cov khoom siv tseem ceeb ntawm cov ntaub tsoos tsho. Cov ntaub qub yog siv los ua cov khoom siv raw rau hauv lub tsho los yog hauv qab dawb paug, thiab cov hlua hemp yog siv los ua ib txhiab- txheej hauv qab lossis cov ntaub plaub hauv qab los ntawm tes lossis tshuab. Cov yas feem ntau yog polyvinyl chloride resin, uas feem ntau yog siv rau khau yas thiab khau ntaub. Roj hmab muaj roj hmab ntuj thiab hluavtaws roj hmab, siv rau khau roj hmab thiab khau ntaub. Muaj ob hom tawv mos, tawv tawv thiab tawv tawv, uas feem ntau yog siv rau cov khau khiab ntaub thiab cov khau mos-soled fabric khau. Roj hmab-yas thiab roj hmab- cov ntaub ntawv ua npuas ncauj yog feem ntau yog siv rau khau tawv thiab khau ntaub.