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About product and suppliers:
        Alibaba.com offers 2,150 grey mailer products. About 67% of these are mailing bags, 14% are packaging boxes, and 4% are packaging bags. 

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

There are 2,150 grey mailer suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of grey mailer respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 2,150 with ISO9001, 1,670 with ISO14001, and 625 with Other certification.