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About product and suppliers:
        Alibaba.com offers 742 composite drainage board products. About 42% of these are other earthwork products, 19% are waterproof membrane, and 1% are geocells. 

A wide variety of composite drainage board options are available to you, such as free samples, paid samples. 

There are 742 composite drainage board suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of composite drainage board respectively. 

Composite drainage board products are most popular in North America, Africa, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 742 with ISO9001, 313 with ISO14001, and 175 with OHSAS18001 certification.