栲胶 kǎojiāo tannin, tannin extract Definitions Defs Origin Strokes Stroke Words Sentences Sents 栲胶 栲膠 kǎojiāo tannin, tannin extract A substance extracted from the bark or wood of trees like the mangrove or oak, used for tanning leather, oil drilling, and mineral processing
栲胶 栲膠 kǎojiāo tannin, tannin extract A substance extracted from the bark or wood of trees like the mangrove or oak, used for tanning leather, oil drilling, and mineral processing
