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About product and suppliers:
        Alibaba.com offers 729 expandable portfolio folders products. About 77% of these are file folder, 6% are notebooks, and 1% are paper & paperboard printing. 

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

There are 651 expandable portfolio folders suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 89%, 9%, and 1% of expandable portfolio folders respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 100 with ISO9001, 65 with Other, and 53 with BSCI certification.