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About product and suppliers:
        Alibaba.com offers 2,360 postage mailer products. About 53% of these are mailing bags, 15% are packaging boxes, and 6% are packaging bags. 

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

There are 2,360 postage mailer suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of postage mailer respectively. 

Postage mailer products are most popular in North America, Domestic Market, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 2,340 with ISO9001, 1,658 with ISO14001, and 226 with Other certification.