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About product and suppliers:
        Alibaba.com offers 16,565 half wave products. About 7% of these are hair extension, 1% are inverters & converters. 

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

There are 16,565 half wave suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of half wave respectively. 

Half wave products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 3,318 with Other, 998 with ISO9001, and 152 with ISO14001 certification.