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About product and suppliers:
        Alibaba.com offers 628 expandable portfolio folders products. About 87% of these are file folder, 5% are notebooks. 

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

There are 630 expandable portfolio folders suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 81%, 17%, 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 73 with Other, 67 with ISO9001, and 17 with BSCI certification.