Using the syntan to pretan vegetable-tanned sole leather ,the quantity of tannin extract can be reduced in vegetable tanning.
该合于植
底革的预
,可减少植
时栲胶的
。
Using the syntan to pretan vegetable-tanned sole leather ,the quantity of tannin extract can be reduced in vegetable tanning.
该合于植
底革的预
,可减少植
时栲胶的
。
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