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About product and suppliers:
        Alibaba.com offers 43,419 heatsink products. About 30% of these are aluminum profiles, 12% are heat sinks, and 1% are lamp cups. 

A wide variety of heatsink options are available to you, such as aluminum, aluminum alloy, and copper. You can also choose from square, round, and angle. As well as from black, silver, and gold. And whether heatsink is ip67, ip55, or ip66. 

There are 43,201 heatsink suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and United States, which supply 97%, 1%, and 1% of heatsink respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 18,673 with ISO9001, 15,961 with Other, and 3,874 with ISO14001 certification.