Using the syntan to pretan vegetable-tanned sole leather ,the quantity of tannin extract can be reduced in vegetable tanning.
该合成剂用于底革的预,可减少栲胶的用。
Using the syntan to pretan vegetable-tanned sole leather ,the quantity of tannin extract can be reduced in vegetable tanning.
该合成剂用于底革的预,可减少栲胶的用。
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