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1 Sorting and Shaving
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1 Sorting and Shaving

        After chrome tanning it is common to allow excess chrome liquor to drain off the wet-blue,and to stand them in a damp condition for a day or more. Further fixation of chrome and setting of the wet-blue fibers occur. Where a flat leather is required,the we......(本文共 11336 字, 3 張圖)     [閱讀本文] >>

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