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About product and suppliers:
        Alibaba.com offers 12,988 poly mailer envelope products. About 78% of these are mailing bags, 1% are paper envelopes, and 1% are jewelry sets. 

A wide variety of poly mailer envelope options are available to you, such as free samples, paid samples. 

There are 12,911 poly mailer envelope suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and United States, which supply 99%, 1%, and 1% of poly mailer envelope respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 10,955 with ISO9001, 5,071 with ISO14001, and 1,398 with Other certification.