Features 1. Closed volume bagging form, suitable for the automatic packing machine; 2. Pre opening of the plastic bag open automatically, facilitate automatic packaging operations; 3. Side is easy to tear off some dental floss, or plane hole, hole is convenient to hang; 4. A perforation allows the end-user to easily access the product by providing a convenient way to tear the bag open. This feature is especially useful when using heavy gauge bags and can be oriented in the horizontal or vertical direction; 5. The bags are made with a clear material on one side and a colored material on the other, typically white. The benefits of a duplex bag are that the print on the colored material is very legible, while the contents inside are still visible from the clear side. Application notes Bags can be customized with a variety of different features, tailoring them to your specific requirements. The bag can be printed, can be tracked, single side openings. The plastic bag to off point connected to the front end of the plastic bag for the bag, plastic bag at the rear end of the bottom edge of the opening of the plastic bag side open side open; practical and convenient packaging into the bag, packing fast, save labor, save time.