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About product and suppliers:
        Alibaba.com offers 1,504 duo mobile phones products. About 33% of these are mobile phone bags & cases, 9% are charger, and 8% are earphone & headphone. 

A wide variety of duo mobile phones options are available to you, such as samsung, apple iphones, and huawei. You can also choose from free samples, paid samples. 

There are 1,504 duo mobile phones suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of duo mobile phones respectively. 

Duo mobile phones products are most popular in North America, South America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 97 with ISO9001, 92 with Other, and 20 with ISO14001 certification.