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About product and suppliers:
        Alibaba.com offers 653 expandable portfolio folders products. About 85% of these are file folder. 

A wide variety of expandable portfolio folders options are available to you, such as document bag, expanding wallet, and presentation folder. You can also choose from pu, paper, and leather. As well as from folder, wallet, and case. And whether expandable portfolio folders is free samples, or paid samples. 

There are 654 expandable portfolio folders suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 84%, 14%, and 1% of expandable portfolio folders respectively. 

Expandable portfolio folders products are most popular in North America, Western Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 68 with Other, 66 with ISO9001, and 16 with BSCI certification.