Our company—CHINEE has a history of more than 10 years in business envelops production. A wide range of mailing envelops, including address envelop, company envelop and letterhead envelop are available in envelops business. The most ordinary one of the customs envelops is the one of the style known as Regular envelopes simply means that it is a closed face envelope with no window. They are the most common used in business to send letters, invoices, checks, and other mailings. We also offer the address envelops and letterhead envelop of unconventional layout.