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About product and suppliers:
        Alibaba.com offers 40 edge class 12 speed products. 

There are 40 edge class 12 speed suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of edge class 12 speed respectively. 

Edge class 12 speed products are most popular in Northern Europe, Eastern Asia, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 32 with BRC, 16 with ISO10012, and 16 with GMP certification.