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nature : also known as the White powder. With Calf back dermal layer by soaking, liming, shed deashed enzyme Sophie, acetone dehydration, grinding along a white cashmere fiber material. The major components of skin collagen, the approximate nature of the dermis. Commonly used in tannin and Quantitative Analysis of leather research. The specifications are very stringent. White powder will be used chromium salt after initial treatment by drying the products known as chromium Paper powder is a light blue cashmere fiber material, the use of white powder than convenience.
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