2 Main Constituents of Hides and Skins
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2 Main Constituents of Hides and Skins圖片（共1張） :

        Fresh hides or skins consist of water,proteins,fatty materials,mineral salts and some other substances. In all these constituents,the proteins are important for leather making. These proteins are collagen,keratin,as well as elastin,albumen,globulin,mucins......（本文共 9286 字, 1 張圖）     [閱讀本文] >>