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About product and suppliers:
        Alibaba.com offers 29,996 courier mailer products. About 59% of these are mailing bags, 6% are packaging bags. 

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

There are 29,996 courier mailer suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of courier mailer respectively. 

Courier mailer products are most popular in North America, Domestic Market, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 24,232 with ISO9001, 13,277 with ISO14001, and 2,616 with FSC certification.