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About product and suppliers:
        Alibaba.com offers 782 ups express envelope products. About 37% of these are mailing bags, 30% are paper envelopes, and 1% are evening bags. 

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

There are 783 ups express envelope suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Hong Kong, which supply 97%, 1%, and 1% of ups express envelope respectively. 

Ups express envelope products are most popular in North America, South Asia, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 235 with ISO9001, 180 with Other, and 179 with ISO14001 certification.