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About product and suppliers:
        Alibaba.com offers 2,498 s duos products. About 3% of these are mobile phone bags & cases, 2% are mobile phone lcds, and 1% are other networking devices. 

A wide variety of s duos options are available to you, such as > 3", < 2". You can also choose from pvc, leather, and silicon. As well as from black, blue, and gray. And whether s duos is free samples, or paid samples. 

There are 2,498 s duos suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of s duos respectively. 

S duos products are most popular in North America, Eastern Europe, and Central America. 

You can ensure product safety by selecting from certified suppliers, including 50 with ISO9001, 41 with Other, and 12 with ISO22000 certification.