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About product and suppliers:
        Alibaba.com offers 1,044,246 design and technology products. About 2% of these are power banks. 

A wide variety of design and technology options are available to you, such as free samples, paid samples. 

There are 1,044,213 design and technology suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of design and technology respectively. 

Design and technology products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 169,317 with ISO9001, 120,919 with Other, and 29,026 with ISO14001 certification.