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About product and suppliers:
        Alibaba.com offers 69 plus underlayment products. About 14% of these are flooring accessories, 4% are waterproof membrane. 

A wide variety of plus underlayment options are available to you, such as 100% polyester, pvc, and 100% polypropylene. You can also choose from silent underlays, moisture-proof underlay. As well as from free samples, paid samples. 

There are 69 plus underlayment suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of plus underlayment respectively. 

Plus underlayment products are most popular in North America, Western Europe, and Central America. 

You can ensure product safety by selecting from certified suppliers, including 9 with Other, 4 with ISO9001 certification.