Using the syntan to pretan vegetable-tanned sole leather ,the quantity of tannin extract can be reduced in vegetable tanning.
该合成鞣剂用于鞣底革的预鞣,可鞣时栲胶的用量。
Using the syntan to pretan vegetable-tanned sole leather ,the quantity of tannin extract can be reduced in vegetable tanning.
该合成鞣剂用于鞣底革的预鞣,可鞣时栲胶的用量。
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