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3 Liming
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        Unhairing and liming may be carried out either separately,or at the same time by immersing the hides and skins completely in lime and sulfide liquor.3.1 Liming SystemStraight lime liquors of 2 parts lime per 100 parts water are chiefly used for skins that......(本文共 9857 字)     [閱讀本文] >>

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