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About product and suppliers:
        Alibaba.com offers 474 3-ring portfolio products. About 75% of these are file folder, 4% are briefcases. 

A wide variety of 3-ring portfolio options are available to you, such as presentation folder, elastic closure folder, and ring binder. You can also choose from leather, pu, and paper. As well as from folder, case, and bag. And whether 3-ring portfolio is free samples, or paid samples. 

There are 474 3-ring portfolio suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of 3-ring portfolio respectively. 

-ring portfolio products are most popular in North America, Western Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 55 with ISO9001, 43 with Other, and 5 with FSC certification.