Hoi Tin Information Technology Company are a manufacturer located in Hong Kong, China. We produce Window Envelope for CD packaging. Our factory is located in Mainland China. And we also have different packaging provided: Jewel Box, Duobox, Multibox, Paper Sleeve, CD Pocket, CD Pocket with Flap, Slim Box and other printing service.   Should you have any queries, please feel free to contact us as our e-mail : hoitin168@hotmail.com or fax no.:(852)8100 5886