We Supply Different Materials Of Vacuum Pouches,Standard Barrier With PA/PE,High Barrier With PA/EVOH/PE,Sous Vide Bags Withstand 100℃,And Retort Pouches With Stand 121℃; These Vacuum Packaging Bags Extend The Shelf Life Of Food Products, Forming An Airtight Seal, And Protecting Against Moisture,Air And Bacteria.