flat pouches (pillow bag), include three-side sealing pouch, four-side sealing pouch, central-sealing pouch, etc. Flat BagAll kinds of flat pouches (pillow bag), include three-side sealing pouch, four-side sealing pouch, central-sealing pouch, etc.is suitable for Flat Bag Fill-Seal Machine.Recommend Machine Modle:Flat Bag Fill-Seal Machine Flat Bag Packaging Machine