9 Chrome Tanning
工業(yè)科技

        In chrome tannage,pickled pelt is treated with basic chrome sulphate. Each chrome complex molecule reacts with several carboxyl groups of collagen to produce crosslinking between different molecule chains of the collagen. This will strengthen the fiber ne......（本文共 9989 字, 2 張圖）     [閱讀本文] >>