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About product and suppliers:
        Alibaba.com offers 1,789 grey mailer bag products. About 78% of these are mailing bags, 21% are packaging bags. 

A wide variety of grey mailer bag options are available to you, such as poly, poly bubble, and plastic. You can also choose from moisture proof, biodegradable, and recyclable. As well as from self adhesive seal, heat seal. And whether grey mailer bag is offset printing, gravure printing, or screen printing. 

There are 1,789 grey mailer bag suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of grey mailer bag respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 1,789 with ISO9001, 1,174 with ISO14001, and 258 with Other certification.