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About product and suppliers:
        Alibaba.com offers 4,635 cool core products. About 1% of these are fiber optic equipment, 1% are mining machinery parts, and 1% are magnetic materials. 

A wide variety of cool core options are available to you, such as api, fda, and ce. You can also choose from free samples, paid samples. 

There are 4,664 cool core suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Vietnam, which supply 98%, 1%, and 1% of cool core respectively. 

Cool core products are most popular in Western Europe, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 1,235 with ISO9001, 282 with Other, and 261 with ISO14001 certification.