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About product and suppliers:
        Alibaba.com offers 50,020 a4 file products. About 66% of these are file folder, 3% are filing cabinets, and 1% are files. 

A wide variety of a4 file options are available to you, such as document bag, presentation folder, and expanding wallet. You can also choose from pp, paper, and pvc. As well as from folder, wallet, and bag. And whether a4 file is free samples, or paid samples. 

There are 49,774 a4 file suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 93%, 2%, and 1% of a4 file respectively. 

A4 file products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 10,908 with ISO9001, 6,134 with Other, and 2,712 with BSCI certification.