... , outer-white and inner-black or grey color. It is recyclable, also we can make it as EPI, OXO biodegradable.b)size: according to client ... . Once you stick onto the bag, you can not open it again uncless you break the bag. Also series bar code ... production equipments.3. we are top brand manufacturers cooperators,such as DHL, UPS, YISHION, Metro, etc.4. each inquiry will be consulted carefully ...