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About product and suppliers:
        Alibaba.com offers 49,657 damper products. About 15% of these are hvac systems & parts, 5% are other furniture hardware, and 1% are valves. 

A wide variety of damper options are available to you, such as hvac systems, ventilation, and noise and attenuation. You can also choose from free samples, paid samples. 

There are 48,634 damper suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Malaysia, which supply 97%, 1%, and 1% of damper respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 19,260 with ISO9001, 6,386 with Other, and 2,775 with ISO/TS16949 certification.