stand up ziplock packaging bag with bottom gusset 1)Certificate:QS,ISO9001 2)Material:customized 3)Moisture proof 1, Material: BOPP/VMCPP, PET/AL ... food, coffee bean ,biscuit, chips, dry food, packaging film, packaging materialPricebased on the product’s material, size, thickness,printing colors and quantityPayment40% TT ...