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About product and suppliers:
        Alibaba.com offers 10,621 waterproof mail bag products. About 60% of these are mailing bags, 26% are packaging bags, and 1% are packaging boxes. 

A wide variety of waterproof mail bag options are available to you, such as poly, poly bubble, and kraft paper. You can also choose from free samples, paid samples. 

There are 10,651 waterproof mail bag suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and United States, which supply 98%, 1%, and 1% of waterproof mail bag respectively. 

Waterproof mail bag products are most popular in North America, Domestic Market, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 10,064 with ISO9001, 4,658 with ISO14001, and 1,545 with Other certification.