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目前，国外所有著名的生产皮化材料的化工公司儿乎都有皮革防水剂产品。这些产品包括所有类型的皮革防水材料。它们彼此间化学组成差异很大，价格贵贱不一，但各有所长。近几年，国内也掀起了皮革防水材料研究的热潮，并开发了一些产品。
面对这么多品种，怎样认识和选择它们进行防水革的生产，以达到既经济又不影响防水效果 的原则呢？
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