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About product and suppliers:
        Alibaba.com offers 5,473 water retention products. About 32% of these are petroleum additives, 32% are plastic auxiliary agents, and 31% are paper chemicals. 

A wide variety of water retention options are available to you, such as coating auxiliary agents, water treatment chemicals, and paper chemicals. You can also choose from free samples, paid samples. 

There are 5,459 water retention suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 97%, 1%, and 1% of water retention respectively. 

Water retention products are most popular in Southeast Asia, South America, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 1,439 with ISO9001, 849 with Other, and 434 with ISO14001 certification.