The bonding theory explains the difference of hydrothermal stability of leathers tanned by various mineral-tanning agents according to their bond strength to collagen.

价键理论根据鞣剂与胶原活性基团形成配位键的强弱，解释各种无机鞣剂鞣革性能的差异。

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The company crushes the mineral and blends it with a bonding agent to create a product it calls Silestone.

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