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About product and suppliers:
        Alibaba.com offers 3,117 reliable factory supply products. About 3% of these are switching power supply, 1% are ac/dc adapters, and 1% are hair extension. 

A wide variety of reliable factory supply options are available to you, such as dual, single. You can also choose from 1 - 50w, 51 - 100w, and >500w. As well as from free samples, paid samples. 

There are 3,117 reliable factory supply suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of reliable factory supply respectively. 

Reliable factory supply products are most popular in North America, South America, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 690 with ISO9001, 336 with Other, and 123 with ISO14001 certification.