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About product and suppliers:
        Alibaba.com offers 5,553 card roads products. About 2% of these are traffic barrier, 1% are other roadway products, and 1% are bicycle. 

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

There are 5,553 card roads suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of card roads respectively. 

Card roads products are most popular in Domestic Market, North America, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 3,143 with ISO9001, 687 with ISO14001, and 546 with OHSAS18001 certification.