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About product and suppliers:
        Alibaba.com offers 521 wave 3 traffic products. About 25% of these are traffic barrier, 1% are traffic light. 

A wide variety of wave 3 traffic options are available to you, such as free samples, paid samples. 

There are 521 wave 3 traffic suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of wave 3 traffic respectively. 

Wave 3 traffic products are most popular in Domestic Market, Mid East, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 521 with ISO9001, 521 with ISO14001, and 4 with Other certification.