... bag:any style 3,printable plastic food bag structure:PET/PE 4,middle seal food plastic bag hot sale middle seal ... roll, sealing film, shrink sleeve ,aluminum foil bag,retort pouch ,PE liner etc.Usage Fieldliquid food, solid food, daily chemical, medicine ,freezing ... is available)MaterialLaminate material/multi-layers(Pure plastic/aluminum foil) PE/PET/BOPP/CPP/RCPP/AL/PA and so on Features1 ...