Bag Types Suitable for 3 side seal bag, 4 side seal bag, handing hole bag, paper bag, stand up bag, zipper bag , doypack bag, M bag ,etc. Machine Details Premade Bag Doypack Packing Machine Details : Zipper Bag Packing Machine Packaging form: specially designed for zipper bags, suitable for food (such as nuts, pet food) or daily necessities that need to be opened and closed multiple times Core functions: Automatic zipper positioning and heat sealing technology to avoid bag mouth deformation or damage Supports slider zippers, double-lock zippers and other types to improve ease of use Advantages: high sealing tightness (such as vacuum extraction to extend shelf life), easy operation (PLC control one-button synchronous adjustment of bag clamping width)