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About product and suppliers:
        Alibaba.com offers 582 howo horn products. About 3% of these are speaker & horn. 

A wide variety of howo horn options are available to you, such as air horn, electric horn. You can also choose from iron, aluminum, and plastic. As well as from 2-way, 4-way. And whether howo horn is 12v, or 24v. 

There are 582 howo horn suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of howo horn respectively. 

Howo horn products are most popular in Africa, Southeast Asia, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 4 with ISO9001, 3 with Other, and 1 with ISO/TS16949 certification.