Dab tsi yog iav Wool
Jun 11, 2021
Cov iav iav yog ib pawg ntawm cov iav fiber, uas yog cov txiv neej ua cov khoom siv tsis zoo. Cov iav iav yog ib yam khoom siv uas ua kom cov iav yaj los ua cov khoom zoo li paj rwb. Cov tshuaj lom neeg muaj pes tsawg leeg yog iav thiab nws yog cov inorganic fiber. Nws muaj cov yas zoo, tsis muaj qhov ntom ntom ntom ntom ntom, ua kom muaj cua sov, rwb thaiv tsev cua sov, nqus suab, thiab tiv taus xeb. , Cov tshuaj lom neeg ruaj khov.