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About product and suppliers:
        Alibaba.com offers 3,617 heavy duty barrier products. About 40% of these are traffic barrier, 3% are fencing, trellis & gates. 

A wide variety of heavy duty barrier options are available to you, such as free samples, paid samples. 

There are 3,617 heavy duty barrier suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of heavy duty barrier respectively. 

Heavy duty barrier products are most popular in North America, Southeast Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 1,379 with ISO9001, 761 with Other, and 375 with ISO14001 certification.