Cov khoom siv ntawm lub tsheb qhov rooj kov yog dab tsi?
Cov khoom no yog me ntsis zoo li txhuas, tab sis nws tsis yog txhuas, nws tsis yog sib nqus nrog hlau nplaum, zoo heev, qhov tseeb, nws yog yas, domestic yeej ABS los yog ABS + PC, txawv teb chaws tej zaum yuav yog PA66, ib co sab nraud tes yog ntxiv rau iav fiber ntau, 6 valent chromium toxic, Tuam Tshoj tau txwv