印刷包装-背（中）封袋

易撕口：在包装袋上开个小口，方便消费者随时轻易撕开，省时省力。
Cut tear notch: A small mouth is opened in the package bag, which is convenient for the consumers to tear apart at any time, and saves time and effort.

挂孔：方便商家挂起，易于展示陈列。
Hanging hole: Convenience stores hangs, is easy to show display.

中封/侧封：包装正面的图案完整，比较美观。
The mid/side sealing: Packaging front design completely, more beautiful.