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4 Dyeing
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4 Dyeing

        Chrome leathers are dyed either discontinuously in drums or continuously on the machines(through-feed dyeing,spray dyeing or dyeing by roller coating). When they are dyed in drums,it is usually carried out during the processes of retanning and fatliquroin......(本文共 11845 字, 1 張圖)     [閱讀本文] >>

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