secure envelope造句

It then prepares secure envelopes containing the names of the winners of the 12 categories, and then affix his seal them.
Once an application is approved then a Government Client Card is personalized and issued along with a PIN arriving in a secure envelope for the cardholder use only.
As you can see, the biggest part of your work will be securing envelopes, stuffing them with circulars and sending them back for payment . . ..
Once the application is filled up with complete supporting documents as requested it will be processed by the Ministry of Finance and Industry, once approved a Government Client Card will be personalized with the card holder details and photo and issued with a PIN in a secure envelope.
It's difficult to find secure envelope in a sentence. 用secure envelope造句挺难的