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About product and suppliers:
        Alibaba.com offers 26,578 underlay products. About 28% of these are flooring accessories, 16% are waterproof membrane, and 1% are wood flooring. 

A wide variety of underlay options are available to you, such as silent underlays, moisture-proof underlay, and flooring trims. You can also choose from free samples, paid samples. 

There are 26,111 underlay suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Malaysia, and Turkey, which supply 97%, 1%, and 1% of underlay respectively. 

Underlay products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 6,116 with ISO9001, 2,343 with ISO14001, and 1,159 with Other certification.