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About product and suppliers:
        Alibaba.com offers 24,052 mail envelop products. About 62% of these are mailing bags, 24% are packaging bags, and 8% are paper envelopes. 

A wide variety of mail envelop options are available to you, such as poly, ordinary paper, and poly bubble. You can also choose from business envelope, gift envelope. As well as from wallet envelope, window envelope. And whether mail envelop is free samples, or paid samples. 

There are 24,052 mail envelop suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of mail envelop respectively. 

Mail envelop products are most popular in North America, Domestic Market, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 21,144 with ISO9001, 11,118 with ISO14001, and 5,319 with Other certification.