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About product and suppliers:
        Alibaba.com offers 6,886 composite grates products. About 69% of these are other fiberglass products, 8% are metal building materials, and 1% are drains. 

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

There are 6,855 composite grates suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Turkey, and India, which supply 98%, 1%, and 1% of composite grates respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 3,475 with ISO9001, 969 with Other, and 433 with ISO14001 certification.