Hana Printing House has been serving the optical industry for over 20 years and now our company provides over 50 optical laboratories, manufacturers and distributors with optical packaging supplies over world wide. We welcome the opportunity to fulfill your packaging needs and help you to solve your packaging problems. We are sure that our outstanding designs and quality make your products be distinguished among your competitors. If you need any other information in reviewing this catalogue, please call us, or e-mail, and we'll be happy to assist you. Hopefully , this will be the first step of our long-lasting prosperous relationship.Capacity : 8,000,000pcs normal type envelopes� + 2,000,000pcs expandable type envelopes per a month.