Yas Binding Muab Kauv Npog

Yas Binding Muab Kauv Npog

yas khi kauv ntaiv yog cov kauj siv siv dav dav, uas yog siv dav rau cov menyuam cov phau ntawv, phau ntawv duab, thiab ntawv nthuav qhia. Nws yog dav qhuas los ntawm cov neeg muas zaub. Ntawm kev thov, peb lub tuam txhab muab peb hom yas khi ntawm cov hlua khi, cov khoom siv PVC, cov khoom PET, cov khoom siv PLA (cov khoom siv tsis zoo)