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Ob feem acid & tshav kub resistant txheej nrog siab hardness thiab hnav tsis kam
2K pob, muaj cov cob tshwj xeeb, xim xim, ntau yam kev ua haujlwm, thiab cov khoom ntxiv, thiab ntu B yog tus neeg saib xyuas kho.
Nyob zoo, Zoo siab txais tos rau ZINDN!
