Four sides sealing flat zipper bag: four sides seal on both sides of the organ, bag with top zipper. Both sides of the organ, can increase the product packaging volume, accompanied by repeated opening and closing the zipper, and convenient for consumers to save products, zipper bag form factor can not be separated from the side sealing zipper bag, self-zipper pocket, a new type of side sealing zipper bag can provide more than a bag of the type of choice for product manufacturers. High-speed printing gravure process, beautifully printed; in response to the packaging requirements of different products, print film composite of various substrates. Common structures include PET12/VMPET12/LLDPE60-120, PET12/AL7/PE100, PET / AL / PA / PE, packaging capacity range: 0.5Kg-4Kg