About product and suppliers:
            192 2 window envelopes products are offered for sale by suppliers on Alibaba.com, of which paper envelopes accounts for 48%, mailing bags accounts for 3%, and paper boxes accounts for 2%. 

A wide variety of 2 window envelopes options are available to you, such as business envelope, gift envelope. You can also choose from window envelope, wallet envelope 2 window envelopes, as well as from gift 2 window envelopes, and whether 2 window envelopes is kraft. 

There are 181 suppliers who sells 2 window envelopes on Alibaba.com, mainly located in Asia. The top countries of suppliers are India, China, and Malaysia, from which the percentage of 2 window envelopes supply is 1%, 80%, and 2% respectively.